Fixes leak with creating editor settings

(cherry picked from commit 599ccbb7d47407bbe32df12fbb3c51f4b19ae602)

editor/editor_settings.cpp

@@ -926,6 +926,7 @@ void EditorSettings::create() {
 		String config_file_name = "editor_settings-" + itos(VERSION_MAJOR) + ".tres";
 		config_file_path = config_dir.plus_file(config_file_name);
 		if (!dir->file_exists(config_file_name)) {
+			memdelete(dir);
 			goto fail;
 		}