Revert "FIX: disable warpspeed scan (#2062)" (#2074)

This reverts commit fc3d6c1.

rapidsai/rapids-cmake#1018 updated to a newer CCCL version with a fix for the Warpspeed kernel bugs.

Authors:
  - Bradley Dice (https://github.com/bdice)

Approvers:
  - Dante Gama Dessavre (https://github.com/dantegd)
  - Micka (https://github.com/lowener)
  - Corey J. Nolet (https://github.com/cjnolet)

URL: #2074

Author: bdice

cpp/cmake/modules/ConfigureCUDA.cmake

@@ -1,6 +1,6 @@
 # =============================================================================
 # cmake-format: off
-# SPDX-FileCopyrightText: Copyright (c) 2018-2026, NVIDIA CORPORATION.
+# SPDX-FileCopyrightText: Copyright (c) 2018-2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 # cmake-format: on
 # =============================================================================
@@ -37,10 +37,6 @@ if(CUDA_LOG_COMPILE_TIME)
   list(APPEND CUVS_CUDA_FLAGS "--time=nvcc_compile_log.csv")
 endif()
 
-# disable warpspeed scan / workaround for CCCL bug https://github.com/NVIDIA/cccl/issues/8838
-list(APPEND CUVS_CXX_FLAGS "-DCCCL_DISABLE_WARPSPEED_SCAN")
-list(APPEND CUVS_CUDA_FLAGS "-DCCCL_DISABLE_WARPSPEED_SCAN")
-
 list(APPEND CUVS_CUDA_FLAGS --expt-extended-lambda --expt-relaxed-constexpr)
 list(APPEND CUVS_CXX_FLAGS "-DCUDA_API_PER_THREAD_DEFAULT_STREAM")
 list(APPEND CUVS_CUDA_FLAGS "-DCUDA_API_PER_THREAD_DEFAULT_STREAM")