Do not lose focus when moving through scene tree

(cherry picked from commit 138698e51fdb29b95eaf1f0a563758d46f57037b)

editor/plugins/canvas_item_editor_plugin.cpp

@@ -4922,7 +4922,6 @@ void CanvasItemEditorPlugin::make_visible(bool p_visible) {
 		canvas_item_editor->show();
 		canvas_item_editor->set_physics_process(true);
 		VisualServer::get_singleton()->viewport_set_hide_canvas(editor->get_scene_root()->get_viewport_rid(), false);
-		canvas_item_editor->viewport->grab_focus();
 
 	} else {