Remove GrMipmapped and GrMipMapped

I cleaned up all client and Skia uses of these a while back.

Change-Id: I0aa173405102e6a4d3872f2376ed81e53617f68d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/783897
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
3 files changed