fix editorwidget

packages/editorwidget/src/widget.ts

@@ -10,13 +10,9 @@ import {
 } from '@jupyterlab/docregistry';
 
 import {
-  CodeEditor, IEditorServices, IEditorMimeTypeService
+  CodeEditor, IEditorServices, IEditorMimeTypeService, CodeEditorWidget
 } from '@jupyterlab/codeeditor';
 
-import {
-  CodeEditorWidget
-} from '@jupyterlab/codeeditor/widget';
-
 
 /**
  * The class name added to a dirty widget.