removed the wrapper script so that the old name is no longer referenced (#676)

test/common/UnitTests

@@ -1,10 +0,0 @@
-#/*************************************************************************
-# * Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
-# *
-# * See LICENSE.txt for license information
-# ************************************************************************/
-
-#!/bin/bash 
-echo "The RCCL test client name has changed from UnitTests to rccl-UnitTests. Please make sure to execute the rccl-UnitTests instead."
-
-./rccl-UnitTests $@