Remove unused common repository

Bug: skia:11945
Change-Id: I1a8b167c320108392c2a168ad88a92c36b34459f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/404118
Commit-Queue: Ravi Mistry <rmistry@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
1 file changed