public void removeDatatransferProgressListener(OnDatatransferProgressListener listener,Account account,OCFile file){
  if (account == null || file == null || listener == null)   return;
  String targetKey=buildRemoteName(account.name,file.getRemotePath());
  if (mBoundListeners.get(targetKey) == listener) {
    mBoundListeners.remove(targetKey);
  }
}

public void removeDatatransferProgressListener ( OnDatatransferProgressListener listener , Account account , OCFile file ) { if ( account == null || file == null || listener == null ) return ; String targetKey = buildRemoteName ( account . name , file . getRemotePath ( ) ) ; if ( mBoundListeners . get ( targetKey ) == listener ) { mBoundListeners . remove ( targetKey ) ; } }
removes a listener interested in the progress of the upload for a concrete file .
