code: function(name){
          for (var i = 0, len = _pluginList.length ; i < len ; i++){
              var plugin = _pluginList[i];
              if (name === plugin.name) {
                  _pluginList.splice(i, 1);
                  return;
              }
          }
      }
docs: remove the plugin by name
  @param  {String} name plugin's name
  @return {void}