Use git rm -f instead of git rm -r
Use git rm -f instead of git rm -r

Change-Id: I87b28e3fcf4d6a2c964c5124ddc94a0cd2f52235
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/602576
Commit-Queue: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>
Reviewed-by: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@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