message: remove useless code in BUILD
diff: @@ -83,13 +83,6 @@ cc_library(
  ],
  )
  -exports_files(
  - srcs = [
  - "pluggable_device_plugin_init.h",
  - ],
  - visibility = ["//visibility:public"],
  -)
  -
  cc_library(
  name = "pluggable_device_runtime",
  hdrs = [":pluggable_device_runtime_headers"],
  