code: function(oThis) {
  		var oControl = oThis.getControl();
  		if (oControl) {
  			PositionContainer.cleanUpControl(oControl);
  			oControl.detachEvent("_change", onPropertyChanges, oThis);
  		}
  	}
docs: @see sap.ui.commons.layout.AbsoluteLayout#cleanUpControl
  
  @private