Revert of Move copy-surface-as-draw fallback to GrGLGpu.

Revert of Move copy-surface-as-draw fallback to GrGLGpu. (patchset #12 id:220001 of https://codereview.chromium.org/1144433002/)

Reason for revert:
Many GMs changed, some totally busted.

Original issue's description:
> Move copy-surface-as-draw fallback to GrGLGpu.
> 
> Committed: https://skia.googlesource.com/skia/+/5df6fee929823f50c55cc50f7c882a309c1b1de9

TBR=joshualitt@google.com,egdaniel@google.com,bsalomon@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://skia.googlesource.com/skia/+/404b3b264b833eb7cffdc833c7e2ebbd708e123a

[mtklein, 2015-05-18 16:28:33]

Created Revert of Move copy-surface-as-draw fallback to GrGLGpu.

[commit-bot: I haz the power, 2015-05-18 16:28:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1142003003/1

[commit-bot: I haz the power, 2015-05-18 16:29:17]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/404b3b264b833eb7cffdc833c7e2ebbd708e123a

[mtklein, 2015-05-18 16:30:45]

Some of the worst are the S4 on xfermodes, xfermodes3, hairmodes.