Revert of Replace GrResourceCache with GrResourceCache2. (patchset #6 id:100001 of https://codereview.chromium.org/716143004/)

Reason for revert:
Breaking stuff

Original issue's description:
> Replace GrResourceCache with GrResourceCache2.
>
> BUG=skia:2889
>
> Committed: https://skia.googlesource.com/skia/+/66a450f21a3da174b7eed89a1d5fc8591e8b6ee6

TBR=robertphillips@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:2889

Review URL: https://codereview.chromium.org/715333003
24 files changed