Remove AUTHORS check from PRESUBMIT.py

This is now done in SkCQ

Bug: skia:12487
Change-Id: I5a1414b7594ef371727c3391b18dbe6948b6c25a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/454457
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Ravi Mistry <rmistry@google.com>
1 file changed