src/layersupport.js
function (layer) {

		var id = layer in this._layers ? layer : this.getLayerId(layer);

		this._proxyMcgLayerSupportGroup.removeLayer(layer);

		delete this._layers[id];

		return this;
	}
function (layer) {

		var id = layer in this._layers ? layer : this.getLayerId(layer);

		this._proxyMcgLayerSupportGroup.removeLayer(layer);

		delete this._layers[id];

		return this;
	}
function ( layer ) { var id = layer in this . _layers ? layer : this . getLayerId ( layer ) ; this . _proxyMcgLayerSupportGroup . removeLayer ( layer ) ; delete this . _layers [ id ] ; return this ; }
Re-implement to redirect removeLayer to Layer Support group instead of map.
Re - implement to redirect removeLayer to Layer Support group instead of map .