remove unused 3.0 API
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java
index ab832ea..c36da78 100755
--- a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java
@@ -2373,7 +2373,7 @@
  * UNDER CONSTRUCTION
  * @since 3.0
  */
-public void setBackground(Image image) {
+void setBackground(Image image) {
 	checkWidget();
 	if (image == bgImage) return;
 	if (image != null) {