Revert "Set up signCLA"

This reverts commit 75bcfd7652fbbd46c8a2bef17c9d4d5e89df5ab9.

Reason for revert: breaks for googlers

Original change's description:
> Set up signCLA
>
> Bug: b/247739438
> Change-Id: I167af3bc6f826931808637cc7f7cb7e5d4286e03
> Reviewed-on: https://webrtc-review.googlesource.com/c/All-Projects/+/276120
> Reviewed-by: Josip Sokcevic <sokcevic@google.com>
> Reviewed-by: Christoffer Jansson <jansson@webrtc.org>

Bug: b/247739438
Change-Id: Ic96c007bf55717e5d1f44361a025d9ed5dea4bc2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://webrtc-review.googlesource.com/c/All-Projects/+/276840
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
2 files changed
tree: c0d29670c69da070c1bc51f79a7fe957bcb27459
  1. buildbucket.config
  2. code-owners.config
  3. groups
  4. project.config