code: function _removeView(paneId, file, suppressRedraw) {
          var pane = _getPane(paneId);
  
          if (pane.removeView(file)) {
              _removeFileFromMRU(pane.id, file);
              exports.trigger("workingSetRemove", file, suppressRedraw, pane.id);
          }
      }
docs: Removes a file the specified pane
  @param {!string} paneId - Must be a valid paneId (not a shortcut e.g. ALL_PANES)
  @param {!File} file - the File to remove
  @param {boolean=} suppressRedraw - true to tell listeners not to redraw
  Use the suppressRedraw flag when calling this function along with many changes to prevent flicker
  @private