renable SkM44.h checks

Change-Id: Id133cb4c97931fb6a8c7d1d6d6b0bb09cbd47d85
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/273486
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Reed <reed@google.com>
5 files changed