#3666 Crash when uploading on structured-data branch - revert cleanup of UploadController (#3670)

Author: macgills

app/src/main/java/fr/free/nrw/commons/repository/UploadRemoteDataSource.java

@@ -87,7 +87,6 @@ public void prepareService() {
      * Clean up the selected categories
      */
     public void cleanUp(){
-        uploadController.cleanup();
         //This needs further refactoring, this should not be here, right now the structure wont suppoort rhis
         categoriesModel.cleanUp();
         depictModel.cleanUp();