Simplify ControlExample image resources loading

Gif images do not contain transparency mask, it's generated based on the
transparencyIndex value. As the codec already knows the
transparencyIndex and applies it this is just useless operation.

Author: akurtakov

examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/ControlExample.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2022 IBM Corporation and others.
+ * Copyright (c) 2000, 2026 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -13,7 +13,6 @@
  *******************************************************************************/
 package org.eclipse.swt.examples.controlexample;
 
-
 import java.io.InputStream;
 import java.text.MessageFormat;
 import java.util.MissingResourceException;
@@ -48,12 +47,6 @@ public class ControlExample {
 		"target.gif", 					//$NON-NLS-1$
 		"backgroundImage.png", 			//$NON-NLS-1$
 		"parentBackgroundImage.png"}; 	//$NON-NLS-1$
-	static final int[] imageTypes = {
-		SWT.ICON,
-		SWT.ICON,
-		SWT.ICON,
-		SWT.BITMAP,
-		SWT.BITMAP};
 
 	boolean startup = true;
 
@@ -205,12 +198,7 @@ void initResources() {
 					for (int i = 0; i < imageLocations.length; ++i) {
 						try (InputStream sourceStream = clazz.getResourceAsStream(imageLocations[i])) {
 							ImageData source = new ImageData(sourceStream);
-							if (imageTypes[i] == SWT.ICON) {
-								ImageData mask = source.getTransparencyMask();
-								images[i] = new Image(null, source, mask);
-							} else {
-								images[i] = new Image(null, source);
-							}
+							images[i] = new Image(null, source);
 						}
 					}
 				}