code: function (mapName, object) {
              var mapValue = this.mapValues[object.id][mapName],
                  index = this.maps[mapName][mapValue].indexOf(object);
  
              if (index !== -1) {
                  this.maps[mapName][mapValue].splice(index, 1);
              }
  
              return this;
          }
docs: Removes object from `mapName` map
  
  @private
  @param {String} mapName
  @param {Object} object
  @return {Com}