[task scheduler] Fix job-creator build
[task scheduler] Fix job-creator build

vim no longer installs successfully in the image, and it was only there
for debugging anyway.

Change-Id: I359111eb74fe3679c654796c27e3b84ce05c01c0
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/570102
Commit-Queue: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>
Reviewed-by: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@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