Revert "Set the selection to 1st CTabItem when it is created."

This reverts commit 49c04a7 because it
introduces regressions in client code.

See #46 (comment)

Author: iloveeclipse

bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java

@@ -768,7 +768,6 @@ void createItem (CTabItem item, int index) {
 	priority = newPriority;
 
 	if (items.length == 1) {
-		setSelection(0);
 		updateFolder(UPDATE_TAB_HEIGHT | REDRAW);
 	} else {
 		updateFolder(REDRAW_TABS);