_deleteFile(sLayer, sNamespace, sFileName, sFileType, sTransportId, sSelectedLayer, bSupport) {
			return LRepConnector.deleteFile(sLayer, sNamespace, sFileName, sFileType, sTransportId, bSupport).then(function() {
				var oRouter = UIComponent.getRouterFor(this);
				oRouter.navTo("LayerContentMaster", {
					layer: sSelectedLayer,
					namespace: encodeURIComponent(sNamespace)
				});
			}.bind(this));
		}
Handler if a deletion was confirmed.
@returns {Promise} <code>LRepConnector</code> "deleteFile" promise
@private