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

This reverts commit fc3d6c1.

Author: bdice

cpp/cmake/modules/ConfigureCUDA.cmake

@@ -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")