Remove .js file extensions from gr-editor-view_test

I missed it when converting it.

Change-Id: Iedf8eacdfab8942db86936f8193e50de2874e3a2
diff --git a/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.ts b/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.ts
index be76ac4..5b04a81 100644
--- a/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.ts
+++ b/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.ts
@@ -15,16 +15,16 @@
  * limitations under the License.
  */
 
-import '../../../test/common-test-setup-karma.js';
+import '../../../test/common-test-setup-karma';
 import {GrEditorView} from './gr-editor-view';
-import {GerritNav} from '../../core/gr-navigation/gr-navigation.js';
-import {HttpMethod} from '../../../constants/constants.js';
-import {stubRestApi, stubStorage} from '../../../test/test-utils.js';
+import {GerritNav} from '../../core/gr-navigation/gr-navigation';
+import {HttpMethod} from '../../../constants/constants';
+import {stubRestApi, stubStorage} from '../../../test/test-utils';
 import {
   EditPatchSetNum,
   NumericChangeId,
   PatchSetNum,
-} from '../../../types/common.js';
+} from '../../../types/common';
 import {
   createChangeViewChange,
   createGenerateUrlEditViewParameters,