diff --git a/core/object/script_language.cpp b/core/object/script_language.cpp
index cdc56e5ec51..83a4abb2279 100644
--- a/core/object/script_language.cpp
+++ b/core/object/script_language.cpp
@@ -493,11 +493,6 @@ void ScriptServer::save_global_classes() {
 
 ////////////////////
 
-ScriptCodeCompletionCache *ScriptCodeCompletionCache::singleton = nullptr;
-ScriptCodeCompletionCache::ScriptCodeCompletionCache() {
-	singleton = this;
-}
-
 void ScriptLanguage::get_core_type_words(List<String> *p_core_type_words) const {
 	p_core_type_words->push_back("String");
 	p_core_type_words->push_back("Vector2");
diff --git a/core/object/script_language.h b/core/object/script_language.h
index 59a43a7b297..04e8086ab03 100644
--- a/core/object/script_language.h
+++ b/core/object/script_language.h
@@ -185,17 +185,6 @@ public:
 	Script() {}
 };
 
-class ScriptCodeCompletionCache {
-	static ScriptCodeCompletionCache *singleton;
-
-public:
-	static ScriptCodeCompletionCache *get_singleton() { return singleton; }
-
-	ScriptCodeCompletionCache();
-
-	virtual ~ScriptCodeCompletionCache() {}
-};
-
 class ScriptLanguage : public Object {
 	GDCLASS(ScriptLanguage, Object)
 
diff --git a/editor/plugins/script_editor_plugin.cpp b/editor/plugins/script_editor_plugin.cpp
index c51eb44aee4..eb3c47fe7fa 100644
--- a/editor/plugins/script_editor_plugin.cpp
+++ b/editor/plugins/script_editor_plugin.cpp
@@ -279,69 +279,6 @@ void ScriptEditorBase::_bind_methods() {
 	ADD_SIGNAL(MethodInfo("go_to_method", PropertyInfo(Variant::OBJECT, "script"), PropertyInfo(Variant::STRING, "method")));
 }
 
-class EditorScriptCodeCompletionCache : public ScriptCodeCompletionCache {
-	struct Cache {
-		uint64_t time_loaded = 0;
-		Ref<Resource> cache;
-	};
-
-	HashMap<String, Cache> cached;
-
-public:
-	uint64_t max_time_cache = 5 * 60 * 1000; //minutes, five
-	uint32_t max_cache_size = 128;
-
-	void cleanup() {
-		List<String> to_clean;
-
-		HashMap<String, Cache>::Iterator I = cached.begin();
-		while (I) {
-			if ((OS::get_singleton()->get_ticks_msec() - I->value.time_loaded) > max_time_cache) {
-				to_clean.push_back(I->key);
-			}
-			++I;
-		}
-
-		while (to_clean.front()) {
-			cached.erase(to_clean.front()->get());
-			to_clean.pop_front();
-		}
-	}
-
-	virtual Ref<Resource> get_cached_resource(const String &p_path) {
-		HashMap<String, Cache>::Iterator E = cached.find(p_path);
-		if (!E) {
-			Cache c;
-			c.cache = ResourceLoader::load(p_path);
-			E = cached.insert(p_path, c);
-		}
-
-		E->value.time_loaded = OS::get_singleton()->get_ticks_msec();
-
-		if (cached.size() > max_cache_size) {
-			uint64_t older;
-			HashMap<String, Cache>::Iterator O = cached.begin();
-			older = O->value.time_loaded;
-			HashMap<String, Cache>::Iterator I = O;
-			while (I) {
-				if (I->value.time_loaded < older) {
-					older = I->value.time_loaded;
-					O = I;
-				}
-				++I;
-			}
-
-			if (O != E) { //should never happen..
-				cached.remove(O);
-			}
-		}
-
-		return E->value.cache;
-	}
-
-	virtual ~EditorScriptCodeCompletionCache() {}
-};
-
 void ScriptEditorQuickOpen::popup_dialog(const Vector<String> &p_functions, bool p_dontclear) {
 	popup_centered_ratio(0.6);
 	if (p_dontclear) {
@@ -3989,7 +3926,6 @@ ScriptEditor::ScriptEditor(WindowWrapper *p_wrapper) {
 	script_editor_cache.instantiate();
 	script_editor_cache->load(EditorPaths::get_singleton()->get_project_settings_dir().path_join("script_editor_cache.cfg"));
 
-	completion_cache = memnew(EditorScriptCodeCompletionCache);
 	restoring_layout = false;
 	waiting_update_names = false;
 	pending_auto_reload = false;
@@ -4334,10 +4270,6 @@ ScriptEditor::ScriptEditor(WindowWrapper *p_wrapper) {
 	_update_online_doc();
 }
 
-ScriptEditor::~ScriptEditor() {
-	memdelete(completion_cache);
-}
-
 void ScriptEditorPlugin::_focus_another_editor() {
 	if (window_wrapper->get_window_enabled()) {
 		ERR_FAIL_COND(last_editor.is_empty());
diff --git a/editor/plugins/script_editor_plugin.h b/editor/plugins/script_editor_plugin.h
index 9db1aff76ac..4a8919d2924 100644
--- a/editor/plugins/script_editor_plugin.h
+++ b/editor/plugins/script_editor_plugin.h
@@ -396,8 +396,6 @@ class ScriptEditor : public PanelContainer {
 
 	void _update_selected_editor_menu();
 
-	EditorScriptCodeCompletionCache *completion_cache = nullptr;
-
 	void _editor_stop();
 
 	int edit_pass;
@@ -577,7 +575,6 @@ public:
 	static void register_create_script_editor_function(CreateScriptEditorFunc p_func);
 
 	ScriptEditor(WindowWrapper *p_wrapper);
-	~ScriptEditor();
 };
 
 class ScriptEditorPlugin : public EditorPlugin {