[win32] Remove overwritten Control#isAutoScalable

This commit removes the overwritten implementation of
Control#isAutoScalable. This overwritten behavior can cause issues
when double buffering with images is used to rendere onto
an autoscaled control. This might be reintroduced when the inconsistency
that leads to this issue is solved beforehand.

Author: akoch-yatta

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Control.java

@@ -1899,11 +1899,6 @@ boolean isActive () {
 	return shell.getEnabled ();
 }
 
-@Override
-public boolean isAutoScalable() {
-	return autoscalingMode == AutoscalingMode.ENABLED;
-}
-
 /**
  * Returns <code>true</code> if the receiver is enabled and all
  * ancestors up to and including the receiver's nearest ancestor