function( file ) {
            var me = this,
                existing = this._map[ file.id ];

            if ( existing ) {
                delete this._map[ file.id ];
                this._delFile(file);
                file.destroy();
                this.stats.numOfDeleted++;
                
            }
        }
function( file ) {
            var me = this,
                existing = this._map[ file.id ];

            if ( existing ) {
                delete this._map[ file.id ];
                this._delFile(file);
                file.destroy();
                this.stats.numOfDeleted++;
                
            }
        }
function ( file ) { var me = this , existing = this . _map [ file . id ] ; if ( existing ) { delete this . _map [ file . id ] ; this . _delFile ( file ) ; file . destroy ( ) ; this . stats . numOfDeleted ++ ; } }
在队列中删除文件。
@grammar removeFile( file ) => Array
@method removeFile
@param {File} 文件对象。
在队列中删除文件。
Delete a file