Revert "put an arena on GrSurfaceDrawContext"

This reverts commit 5a2de5e72f24d1bfbdc532252be3dcdefa7b75a2.

Reason for revert: Upon further investigation this still leaks

Original change's description:
> put an arena on GrSurfaceDrawContext
>
> This is part one of two CLs. In this CL, I put a
> sk_sp<GrArenas> on GrSurfaceFillContext where GrArenas wraps
> a SkArenaAlloc to add ref counting. Creating
> a GrOpsTask shares the GrArenas with the ops task. New plumbing
> was added to GR_DRAW_OP_TEST_DEFINE to allow a proper
> GrSurfaceDrawContext to be passed to GrAtlasTextOp's
> GR_DRAW_OP_TEST_DEFINE so the arena will have a proper lifetime.
>
> The second CL will work on replacing GrOpsTask's fAllocators
> system with the shared arena.
>
> Change-Id: Ife3be0ab265441cbffab360f2808f5eed86db8b3
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/392936
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Herb Derby <herb@google.com>

TBR=bsalomon@google.com,herb@google.com

Change-Id: I9ca5c8b1e16b468003788cd3126eda1d40ff93ed
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/393177
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Herb Derby <herb@google.com>
13 files changed