6853592: VM test nsk.regression.b4261880 fails with "X Error of failed...

6853592: VM test nsk.regression.b4261880  fails with "X Error of failed request:  BadWindow" inconsistently.
Reviewed-by: art, anthony

src/solaris/classes/sun/awt/X11/XToolkit.java

@@ -324,13 +324,6 @@ public final class XToolkit extends UNIXToolkit implements Runnable {
                 if (log.isLoggable(Level.FINE)) {
                     dumpPeers();
                 }
-
-                awtLock();
-                try {
-                    XlibWrapper.XSetErrorHandler(saved_error_handler);
-                } finally {
-                    awtUnlock();
-                }
             }
         });
     }