Revert ImageBasedFrame zoom change listener

This commit reverts the change to the zoom changed listener of the
ImageBasedFrame. The async DPI change handling of the windows
implementation does not need the complex event chaining anymore.

Author: akoch-yatta

bundles/org.eclipse.e4.ui.widgets/src/org/eclipse/e4/ui/widgets/ImageBasedFrame.java

@@ -14,8 +14,6 @@
  ******************************************************************************/
 package org.eclipse.e4.ui.widgets;
 
-import java.util.concurrent.atomic.AtomicReference;
-
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ControlEvent;
 import org.eclipse.swt.events.ControlListener;
@@ -26,8 +24,6 @@
 import org.eclipse.swt.widgets.Canvas;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Listener;
-import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.ToolBar;
 
 
@@ -70,20 +66,12 @@ public ImageBasedFrame(Composite parent, Control toWrap, boolean vertical,
 			ImageBasedFrame frame = (ImageBasedFrame) event.widget;
 			frame.setCursor(null);
 		});
-
 		toWrap.addListener(SWT.ZoomChanged, event -> {
-			Shell shell = parent.getShell();
-			final AtomicReference<Listener> scaleOnParentResize = new AtomicReference<>();
-			scaleOnParentResize.set(e -> {
-				if (isDisposed()) {
-					return;
-				}
-				toWrap.pack(true);
-				setFramedControlLocation();
-				parent.layout();
-				shell.removeListener(SWT.Resize, scaleOnParentResize.get());
-			});
-			shell.addListener(SWT.Resize, scaleOnParentResize.get());
+			if (isDisposed()) {
+				return;
+			}
+			toWrap.pack(true);
+			setFramedControlLocation();
 		});
 
 		addMouseMoveListener(e -> {