Remove duplicate line

[ROCm/rccl commit: 5782a8d857]
2019-08-14 13:22:43 -07:00
@@ -1,7 +1,6 @@
 /*************************************************************************
 * Copyright (c) 2015-2018, NVIDIA CORPORATION. All rights reserved.
 * Modifications Copyright (c) 2019 Advanced Micro Devices, Inc. All rights reserved.
- * Modifications Copyright (c) 2019 Advanced Micro Devices, Inc. All rights reserved.
 *
 * See LICENSE.txt for license information
 ************************************************************************/