Normalized the code

src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java

@@ -1741,9 +1741,9 @@ public class OCFileListFragment extends ExtendedListFragment implements
         }
     }
 
-    private void showSpaceErrorDialog(OCFile file, long spaceAvailableOnDevice) {
+    private void showSpaceErrorDialog(OCFile file, long availableSpaceOnDevice) {
         SyncFileNotEnoughSpaceDialogFragment dialog =
-            SyncFileNotEnoughSpaceDialogFragment.newInstance(file, spaceAvailableOnDevice);
+            SyncFileNotEnoughSpaceDialogFragment.newInstance(file, availableSpaceOnDevice);
         dialog.setTargetFragment(this, NOT_ENOUGH_SPACE_FRAG_REQUEST_CODE);
 
         if (getFragmentManager() != null) {

src/main/java/com/owncloud/android/ui/helpers/FileOperationsHelper.java

@@ -42,7 +42,6 @@ import android.os.StatFs;
 import android.provider.MediaStore;
 import android.text.TextUtils;
 import android.util.Log;
-import android.util.Pair;
 import android.view.View;
 import android.webkit.MimeTypeMap;