This reverts commit 6e485053.

Reason for revert: cause recursive calls of update_hook

  |   \_ bash /usr/local/google/home/ukai/depot_tools/gclient sync
ukai      29514  0.0  0.0  16104  3648 pts/10   S+   14:40   0:00  |
   |       \_ bash /usr/local/google/home/ukai/depot_tools/update_depot_tools sync
ukai      29586  0.0  0.0  15972  3276 pts/10   S+   14:40   0:00  |
   |           \_ bash /usr/local/google/home/ukai/depot_tools/goma_ctl update_hook
ukai      29614  0.0  0.0  15972  3192 pts/10   S+   14:40   0:00  |
   |               \_ bash /usr/local/google/home/ukai/depot_tools/goma_ctl update_hook

Original change's description:
> put goma client in depot_tools
> 
> install goma client cipd package in depot_tools.
> 
> Bug: b/77663154
> Change-Id: Ibcfc42b9b7705bcf71b4ba2e834b4ebf09ad25fe
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1846892
> Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
> Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
> Commit-Queue: Fumitoshi Ukai <ukai@chromium.org>

TBR=sque@chromium.org,ukai@chromium.org,yyanagisawa@google.com,tikuta@chromium.org,ehmaldonado@chromium.org,apolito@google.com

Change-Id: I644799c06f74a436b201c4c6c3de44af30c51556
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: b/77663154
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1866349Reviewed-by: Fumitoshi Ukai <ukai@chromium.org>
Commit-Queue: Fumitoshi Ukai <ukai@chromium.org>