Revert "[task scheduler] Use LUCI project ID "skia" for buildbot.git"
Revert "[task scheduler] Use LUCI project ID "skia" for buildbot.git"

This reverts commit fe55d9bb48aa2a6191227e0bd3a926a06f58d9af.

Reason for revert: breaks try jobs in skia.git due to having the same project ID.

Original change's description:
> [task scheduler] Use LUCI project ID "skia" for buildbot.git
> 
> Bug: skia:
> Change-Id: Icf8c42f2c06e7234fb8300cef907cfcfe7c45355
> Reviewed-on: https://skia-review.googlesource.com/118060
> Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>
> Commit-Queue: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>

TBR=0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com,benjaminwagner@google.com,rmistry@google.com

Change-Id: I981aa518699b900a2374c972330b7af2e33a54aa
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/118120
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>
Commit-Queue: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot