Remove visdom dependency from pytorch_CycleGAN_and_pix2pix
visdom is unmaintained and fails to build on Python 3.12 due to
missing pkg_resources. It was never used in the benchmark since
display_id is always set to 0 or -1. Remove the dependency and
all visdom/display_id related code paths.
stack-info: PR: https://github.com/pytorch/benchmark/pull/2666, branch: xmfan/stack/1
