Remove test_makeOp

Change-Id: I98973d870aeab0a63aa0bb9da818f03f6816bed0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/292579
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Herb Derby <herb@google.com>
3 files changed