tree d8b959248a001e5b96430e6c11dbfd7084eff79a
parent 2877735b363080bc7c2b3b52c882dffe73a85b3c
author Benjamin Peterson <bp@benjamin.pe> 1512413956 -0800
committer Copybara-Service <copybara-piper@google.com> 1512414050 -0800

Remove some deadish Windows-related runfiles code.

In particular, SymlinkTreeAction no longer needs to accept artifacts
as an input. --experimental_enable_runfiles now immediately reports an
error on Windows.

This mostly unwinds e4974e4cc6aeb437d36b3b36eb20142b7120fb16
("Separate runfiles middlemen into two layers") and
41f4456ac2348bef66739194853a1ddadcbb887e ("Make runfiles tree creation
on Windows depend on the artifacts of the actual runfiles."). See
https://groups.google.com/d/msg/bazel-dev/btOAgxv434g/bDhTOOePAgAJ.

Change-Id: Iac3308669bfc07abfd1c91445922269d8fdc2a26
PiperOrigin-RevId: 177837504