message: Exclude tensorflow/contrib/bigtable on Windows
  Fix Windows failure caused by cl/202664219
diff: @@ -25,10 +25,8 @@ py_library(
  "//tensorflow/contrib/all_reduce",
  "//tensorflow/contrib/batching:batch_py",
  "//tensorflow/contrib/bayesflow:bayesflow_py",
  - "//tensorflow/contrib/bigtable",
  "//tensorflow/contrib/boosted_trees:init_py",
  "//tensorflow/contrib/checkpoint/python:checkpoint",
  - "//tensorflow/contrib/cloud:cloud_py",
  "//tensorflow/contrib/cluster_resolver:cluster_resolver_pip",
  "//tensorflow/contrib/cluster_resolver:cluster_resolver_py",
  "//tensorflow/contrib/coder:coder_py",
  @@ -128,6 +126,8 @@ py_library(
  "//tensorflow/contrib/fused_conv:fused_conv_py", # unresolved symbols, need to export more symbols
  ]) + if_not_windows([
  "//tensorflow/contrib/ffmpeg:ffmpeg_ops_py",
  + "//tensorflow/contrib/cloud:cloud_py", # depends on bigtable
  + "//tensorflow/contrib/bigtable", # doesn't compile on Windows
  "//tensorflow/contrib/lite/python:lite", # unix dependency, need to fix code
  ]),
  )
  