Remove GN back-compat toolchain args code.

All callers of toolchain_args as a function have been update to use the new
variable. The shim code can be removed.

BUG=634446

Review-Url: https://codereview.chromium.org/2240293002
Cr-Original-Commit-Position: refs/heads/master@{#411767}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: b68d6d77e73624422dce58601eafad9d8e5d4f14
3 files changed
tree: 322dde11ad87836c82abeb45e7fb2b740c012ad4
  1. tools/