Removed duplicated functions after migration

Summary:
Pritesh and I both decided to re-add these functions without knowing that the other person had already re-added them.

Got through to master and now master won't build.

Reviewed By: priteshrnandgaonkar

Differential Revision: D16762774

fbshipit-source-id: 4a05d9e03cb043a6f398f57f2652a3ec15bd8985

src/reducers/application.tsx

@@ -267,12 +267,3 @@ export const setFlipperRating = (rating: number): Action => ({
     rating,
   },
 });
-
-export const unsetShare = (): Action => ({
-  type: UNSET_SHARE,
-});
-
-export const setExportStatusComponent = (payload: JSX.Element): Action => ({
-  type: SET_EXPORT_STATUS_MESSAGE,
-  payload,
-});