Revert "added setting to override the theme background with editor theme color"

This reverts commit ce4eb307789eb86261afecc1400de5e5b0832400.

editor/editor_settings.cpp

@@ -603,7 +603,6 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
 	hints["text_editor/theme/color_theme"] = PropertyInfo(Variant::STRING, "text_editor/theme/color_theme", PROPERTY_HINT_ENUM, "Default");
 
 	set("text_editor/theme/line_spacing", 4);
-	set("text_editor/theme/adapted_code_editor_background_color", true);
 
 	_load_default_text_editor_theme();
 

editor/plugins/script_text_editor.cpp

@@ -75,14 +75,9 @@ void ScriptTextEditor::_load_theme_settings() {
 
 	text_edit->clear_colors();
 
-	/* color from color_theme or from editor color */
-
-	Color background_color = EDITOR_DEF("text_editor/highlighting/background_color", Color(0, 0, 0, 0));
-	if (EDITOR_DEF("text_editor/theme/adapted_code_editor_background_color", false))
-		background_color = get_color("dark_color_1", "Editor");
-
 	/* keyword color */
-	text_edit->add_color_override("background_color", background_color);
+
+	text_edit->add_color_override("background_color", EDITOR_DEF("text_editor/highlighting/background_color", Color(0, 0, 0, 0)));
 	text_edit->add_color_override("completion_background_color", EDITOR_DEF("text_editor/highlighting/completion_background_color", Color(0, 0, 0, 0)));
 	text_edit->add_color_override("completion_selected_color", EDITOR_DEF("text_editor/highlighting/completion_selected_color", Color::html("434244")));
 	text_edit->add_color_override("completion_existing_color", EDITOR_DEF("text_editor/highlighting/completion_existing_color", Color::html("21dfdfdf")));