diff --git a/core/helper/SCsub b/core/helper/SCsub
deleted file mode 100644
index 4efc9027176..00000000000
--- a/core/helper/SCsub
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/usr/bin/env python
-
-Import('env')
-
-env.add_source_files(env.core_sources, "*.cpp")
-
-Export('env')
diff --git a/core/helper/value_evaluator.h b/core/helper/value_evaluator.h
deleted file mode 100644
index 39177a78205..00000000000
--- a/core/helper/value_evaluator.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*************************************************************************/
-/*  value_evaluator.h                                                    */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#ifndef VALUE_EVALUATOR_H
-#define VALUE_EVALUATOR_H
-
-#include "core/object.h"
-
-class ValueEvaluator : public Object {
-
-	GDCLASS(ValueEvaluator, Object);
-
-public:
-	virtual double eval(const String &p_text) {
-		return p_text.to_double();
-	}
-};
-
-#endif // VALUE_EVALUATOR_H
diff --git a/core/helper/math_fieldwise.cpp b/core/math/math_fieldwise.cpp
similarity index 100%
rename from core/helper/math_fieldwise.cpp
rename to core/math/math_fieldwise.cpp
diff --git a/core/helper/math_fieldwise.h b/core/math/math_fieldwise.h
similarity index 100%
rename from core/helper/math_fieldwise.h
rename to core/math/math_fieldwise.h
diff --git a/editor/multi_node_edit.cpp b/editor/multi_node_edit.cpp
index 173be01586d..be4e752d550 100644
--- a/editor/multi_node_edit.cpp
+++ b/editor/multi_node_edit.cpp
@@ -30,7 +30,7 @@
 
 #include "multi_node_edit.h"
 
-#include "core/helper/math_fieldwise.h"
+#include "core/math/math_fieldwise.h"
 #include "editor_node.h"
 
 bool MultiNodeEdit::_set(const StringName &p_name, const Variant &p_value) {
diff --git a/editor/property_editor.cpp b/editor/property_editor.cpp
index 508db2e03fa..c611327a31c 100644
--- a/editor/property_editor.cpp
+++ b/editor/property_editor.cpp
@@ -1991,60 +1991,3 @@ CustomPropertyEditor::CustomPropertyEditor() {
 	create_dialog = NULL;
 	property_select = NULL;
 }
-
-/////////////////////////////
-
-double PropertyValueEvaluator::eval(const String &p_text) {
-
-	// If range value contains a comma replace it with dot (issue #6028)
-	const String &p_new_text = p_text.replace(",", ".");
-
-	if (!obj || !script_language)
-		return _default_eval(p_new_text);
-
-	Ref<Script> script = Ref<Script>(script_language->create_script());
-	script->set_source_code(_build_script(p_new_text));
-	Error err = script->reload();
-	if (err) {
-		ERR_PRINTS("PropertyValueEvaluator: Error loading script for expression: " + p_new_text);
-		return _default_eval(p_new_text);
-	}
-
-	Object dummy;
-	ScriptInstance *script_instance = script->instance_create(&dummy);
-	if (!script_instance)
-		return _default_eval(p_new_text);
-
-	Variant::CallError call_err;
-	Variant arg = obj;
-	const Variant *args[] = { &arg };
-	double result = script_instance->call("eval", args, 1, call_err);
-	if (call_err.error == Variant::CallError::CALL_OK) {
-		return result;
-	}
-	ERR_PRINTS("PropertyValueEvaluator: Eval failed, error code: " + itos(call_err.error));
-
-	return _default_eval(p_new_text);
-}
-
-void PropertyValueEvaluator::edit(Object *p_obj) {
-	obj = p_obj;
-}
-
-String PropertyValueEvaluator::_build_script(const String &p_text) {
-	String script_text = "tool\nextends Object\nfunc eval(s):\n\tself = s\n\treturn " + p_text.strip_edges() + "\n";
-	return script_text;
-}
-
-PropertyValueEvaluator::PropertyValueEvaluator() {
-	script_language = NULL;
-
-	for (int i = 0; i < ScriptServer::get_language_count(); i++) {
-		if (ScriptServer::get_language(i)->get_name() == "GDScript") {
-			script_language = ScriptServer::get_language(i);
-		}
-	}
-}
-
-PropertyValueEvaluator::~PropertyValueEvaluator() {
-}
diff --git a/editor/property_editor.h b/editor/property_editor.h
index ee3a56d857f..c74103df3db 100644
--- a/editor/property_editor.h
+++ b/editor/property_editor.h
@@ -171,30 +171,9 @@ public:
 
 	void set_read_only(bool p_read_only) { read_only = p_read_only; }
 
-	void set_value_evaluator(PropertyValueEvaluator *p_evaluator) { evaluator = p_evaluator; }
-
 	bool edit(Object *p_owner, const String &p_name, Variant::Type p_type, const Variant &p_variant, int p_hint, String p_hint_text);
 
 	CustomPropertyEditor();
 };
 
-class PropertyValueEvaluator : public ValueEvaluator {
-	GDCLASS(PropertyValueEvaluator, ValueEvaluator);
-
-	Object *obj;
-	ScriptLanguage *script_language;
-	String _build_script(const String &p_text);
-
-	_FORCE_INLINE_ double _default_eval(const String &p_text) {
-		return p_text.to_double();
-	}
-
-public:
-	void edit(Object *p_obj);
-	double eval(const String &p_text);
-
-	PropertyValueEvaluator();
-	~PropertyValueEvaluator();
-};
-
 #endif
diff --git a/scene/gui/tree.cpp b/scene/gui/tree.cpp
index 24b90839649..23e4c26695b 100644
--- a/scene/gui/tree.cpp
+++ b/scene/gui/tree.cpp
@@ -159,7 +159,7 @@ void TreeItem::set_text(int p_column, String p_text) {
 	ERR_FAIL_INDEX(p_column, cells.size());
 	cells.write[p_column].text = p_text;
 
-	if (cells[p_column].mode == TreeItem::CELL_MODE_RANGE || cells[p_column].mode == TreeItem::CELL_MODE_RANGE_EXPRESSION) {
+	if (cells[p_column].mode == TreeItem::CELL_MODE_RANGE) {
 
 		Vector<String> strings = p_text.split(",");
 		cells.write[p_column].min = INT_MAX;
@@ -791,7 +791,6 @@ void TreeItem::_bind_methods() {
 	BIND_ENUM_CONSTANT(CELL_MODE_STRING);
 	BIND_ENUM_CONSTANT(CELL_MODE_CHECK);
 	BIND_ENUM_CONSTANT(CELL_MODE_RANGE);
-	BIND_ENUM_CONSTANT(CELL_MODE_RANGE_EXPRESSION);
 	BIND_ENUM_CONSTANT(CELL_MODE_ICON);
 	BIND_ENUM_CONSTANT(CELL_MODE_CUSTOM);
 
@@ -1245,9 +1244,7 @@ int Tree::draw_item(const Point2i &p_pos, const Point2 &p_draw_ofs, const Size2
 					//font->draw( ci, text_pos, p_item->cells[i].text, col,item_rect.size.x-check_w );
 
 				} break;
-				case TreeItem::CELL_MODE_RANGE:
-				case TreeItem::CELL_MODE_RANGE_EXPRESSION: {
-
+				case TreeItem::CELL_MODE_RANGE: {
 					if (p_item->cells[i].text != "") {
 
 						if (!p_item->cells[i].editable)
@@ -1821,9 +1818,7 @@ int Tree::propagate_mouse_event(const Point2i &p_pos, int x_ofs, int y_ofs, bool
 				//p_item->edited_signal.call(col);
 
 			} break;
-			case TreeItem::CELL_MODE_RANGE:
-			case TreeItem::CELL_MODE_RANGE_EXPRESSION: {
-
+			case TreeItem::CELL_MODE_RANGE: {
 				if (c.text != "") {
 					//if (x >= (get_column_width(col)-item_h/2)) {
 
@@ -2010,21 +2005,6 @@ void Tree::text_editor_enter(String p_text) {
 
 			//popup_edited_item->edited_signal.call( popup_edited_item_col );
 		} break;
-		case TreeItem::CELL_MODE_RANGE_EXPRESSION: {
-
-			if (evaluator)
-				c.val = evaluator->eval(p_text);
-			else
-				c.val = p_text.to_double();
-
-			if (c.step > 0)
-				c.val = Math::stepify(c.val, c.step);
-			if (c.val < c.min)
-				c.val = c.min;
-			else if (c.val > c.max)
-				c.val = c.max;
-
-		} break;
 		default: { ERR_FAIL(); }
 	}
 
@@ -2453,7 +2433,7 @@ void Tree::_gui_input(Ref<InputEvent> p_event) {
 			update();
 		}
 
-		if (pressing_for_editor && popup_edited_item && (popup_edited_item->get_cell_mode(popup_edited_item_col) == TreeItem::CELL_MODE_RANGE || popup_edited_item->get_cell_mode(popup_edited_item_col) == TreeItem::CELL_MODE_RANGE_EXPRESSION)) {
+		if (pressing_for_editor && popup_edited_item && (popup_edited_item->get_cell_mode(popup_edited_item_col) == TreeItem::CELL_MODE_RANGE)) {
 			//range drag
 
 			if (!range_drag_enabled) {
@@ -2697,7 +2677,7 @@ bool Tree::edit_selected() {
 		item_edited(col, s);
 
 		return true;
-	} else if ((c.mode == TreeItem::CELL_MODE_RANGE || c.mode == TreeItem::CELL_MODE_RANGE_EXPRESSION) && c.text != "") {
+	} else if (c.mode == TreeItem::CELL_MODE_RANGE && c.text != "") {
 
 		popup_menu->clear();
 		for (int i = 0; i < c.text.get_slice_count(","); i++) {
@@ -2713,7 +2693,7 @@ bool Tree::edit_selected() {
 		popup_edited_item_col = col;
 		return true;
 
-	} else if (c.mode == TreeItem::CELL_MODE_STRING || c.mode == TreeItem::CELL_MODE_RANGE || c.mode == TreeItem::CELL_MODE_RANGE_EXPRESSION) {
+	} else if (c.mode == TreeItem::CELL_MODE_STRING || c.mode == TreeItem::CELL_MODE_RANGE) {
 
 		Vector2 ofs(0, (text_editor->get_size().height - rect.size.height) / 2);
 		Point2i textedpos = get_global_position() + rect.position - ofs;
@@ -2723,7 +2703,7 @@ bool Tree::edit_selected() {
 		text_editor->set_text(c.mode == TreeItem::CELL_MODE_STRING ? c.text : String::num(c.val, Math::step_decimals(c.step)));
 		text_editor->select_all();
 
-		if (c.mode == TreeItem::CELL_MODE_RANGE || c.mode == TreeItem::CELL_MODE_RANGE_EXPRESSION) {
+		if (c.mode == TreeItem::CELL_MODE_RANGE) {
 
 			value_editor->set_position(textedpos + Point2i(0, text_editor->get_size().height));
 			value_editor->set_size(Size2(rect.size.width, 1));
@@ -3713,10 +3693,6 @@ bool Tree::is_folding_hidden() const {
 	return hide_folding;
 }
 
-void Tree::set_value_evaluator(ValueEvaluator *p_evaluator) {
-	evaluator = p_evaluator;
-}
-
 void Tree::set_drop_mode_flags(int p_flags) {
 	if (drop_mode_flags == p_flags)
 		return;
@@ -3934,8 +3910,6 @@ Tree::Tree() {
 
 	hide_folding = false;
 
-	evaluator = NULL;
-
 	drop_mode_flags = 0;
 	drop_mode_over = NULL;
 	drop_mode_section = 0;
diff --git a/scene/gui/tree.h b/scene/gui/tree.h
index 205cdbfb7e8..551600109e7 100644
--- a/scene/gui/tree.h
+++ b/scene/gui/tree.h
@@ -31,7 +31,6 @@
 #ifndef TREE_H
 #define TREE_H
 
-#include "core/helper/value_evaluator.h"
 #include "scene/gui/control.h"
 #include "scene/gui/line_edit.h"
 #include "scene/gui/popup_menu.h"
@@ -504,8 +503,6 @@ private:
 
 	bool hide_folding;
 
-	ValueEvaluator *evaluator;
-
 	int _count_selected_items(TreeItem *p_from) const;
 	void _go_left();
 	void _go_right();
@@ -601,8 +598,6 @@ public:
 	void set_allow_reselect(bool p_allow);
 	bool get_allow_reselect() const;
 
-	void set_value_evaluator(ValueEvaluator *p_evaluator);
-
 	Tree();
 	~Tree();
 };