Staging: lustre: module.c: remove unneeded return statement

Remove an unneeded return statement in this file as reported by
checkpatch.pl.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lnet/selftest/module.c

@@ -87,7 +87,6 @@ lnet_selftest_fini(void)
 	default:
 		LBUG();
 	}
-	return;
 }
 
 static int