Trivial code cleanup

Change-Id: I025fdb85d4eb300b6b889ed270147d7a0da090a5
diff --git a/src/com/android/mail/ui/AbstractActivityController.java b/src/com/android/mail/ui/AbstractActivityController.java
index 9df9869..ccac207 100644
--- a/src/com/android/mail/ui/AbstractActivityController.java
+++ b/src/com/android/mail/ui/AbstractActivityController.java
@@ -223,6 +223,7 @@
         return mConversationListCursor;
     }
 
+    @Override
     public void initConversationListCursor() {
         mActivity.getLoaderManager().restartLoader(LOADER_CONVERSATION_LIST, Bundle.EMPTY,
                 new LoaderManager.LoaderCallbacks<ConversationCursor>() {
@@ -546,6 +547,7 @@
             mDestructiveChange = destructive;
         }
 
+        @Override
         public abstract void onActionComplete();
     }
 
diff --git a/src/com/android/mail/ui/ActionBarView.java b/src/com/android/mail/ui/ActionBarView.java
index 5322a1a..2f47eb8 100644
--- a/src/com/android/mail/ui/ActionBarView.java
+++ b/src/com/android/mail/ui/ActionBarView.java
@@ -55,7 +55,6 @@
     private RestrictedActivity mActivity;
     private ActivityController mController;
     private View mFolderView;
-    private Folder mFolder;
     /**
      * The current mode of the ActionBar. This references constants in {@link ViewMode}
      */
@@ -184,7 +183,6 @@
         // This allows us to receive a tap on the account name when the user taps on it, and we can
         // take the user to the default inbox.
         mActionBar.setSelectedNavigationItem(mSpinner.getSpacerPosition());
-        mFolder = folder;
         mSpinner.setCurrentFolder(folder);
         mSpinner.notifyDataSetChanged();
     }