message: Add back the "no_rocm" tag to cwise_unary_op target.
  It seems in the Kokoro build environment, hexdump is not available.
diff: @@ -41,6 +41,9 @@ tf_kernel_library(
  "cwise_op_gpu_base.h",
  "cwise_op_gpu_tanh.cc",
  ]),
  + # Building abs_kernels and tanh_kernels requires hexdump on the ROCM
  + # platform, which might not be available.
  + tags = ["no_rocm"],
  deps = if_cuda_or_rocm([
  ":abs_kernels",
  ":tanh_kernels",
  