spotbugs: remove unused variables

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

src/main/java/com/owncloud/android/ui/asynctasks/PhotoSearchTask.java

@@ -97,7 +97,6 @@ public class PhotoSearchTask extends AsyncTask<Void, Void, RemoteOperationResult
     @Override
     protected void onPostExecute(RemoteOperationResult result) {
         if (photoFragmentWeakReference.get() != null) {
-            Boolean loadingStatus = false;
             PhotoFragment photoFragment = photoFragmentWeakReference.get();
 
             if (result.isSuccess() && result.getData() != null && !isCancelled()) {

src/main/java/com/owncloud/android/ui/dialog/MultipleAccountsDialog.java

@@ -71,8 +71,6 @@ public class MultipleAccountsDialog extends DialogFragment implements Injectable
             throw new IllegalArgumentException("Activity may not be null");
         }
 
-        int accentColor = ThemeUtils.primaryAccentColor(getContext());
-
         // Inflate the layout for the dialog
         LayoutInflater inflater = activity.getLayoutInflater();
         @SuppressLint("InflateParams") View view = inflater.inflate(R.layout.multiple_accounts, null);