src/sap.ui.commons/src/sap/ui/commons/DropdownBox.js
function remove(id) {
			var oItem = sap.ui.getCore().byId(id);
			if (oItem) {
				oItem.destroy();
			}
		}
function remove(id) {
			var oItem = sap.ui.getCore().byId(id);
			if (oItem) {
				oItem.destroy();
			}
		}
function remove ( id ) { var oItem = sap . ui . getCore ( ) . byId ( id ) ; if ( oItem ) { oItem . destroy ( ) ; } }
check for and remaining history items and destroy them
check for and remaining history items and destroy them