Remove alert (#591)

Author: sclaridge

display_information/update-graphics/src/main/java/com/esri/samples/update_graphics/UpdateGraphicsSample.java

@@ -193,7 +193,7 @@ public void start(Stage stage) {
                     Point mapPoint = mapView.screenToLocation(mapViewPoint);
                     // update the location of the graphic to the dragged location
                     identifiedGraphic.setGeometry(mapPoint);
-                  } else new Alert(Alert.AlertType.ERROR, "Error selecting graphic").show();
+                  }
                 });
               } else {
                 disableUI(true);