Revert of add asserts around results from requestLock (patchset #3 id:40001 of https://codereview.chromium.or… (patchset #1 id:1 of https://codereview.chromium.org/1165583005/)

Reason for revert:
failure in cc_unittests (need to diagnose)

@@@STEP_LOG_LINE@ResourceProviderTests_ResourceProviderTest.TransferInvalidSoftware_1@ResourceProviderTests/ResourceProviderTest.TransferInvalidSoftware/1 (run #1):@@@
@@@STEP_LOG_LINE@ResourceProviderTests_ResourceProviderTest.TransferInvalidSoftware_1@[ RUN      ] ResourceProviderTests/ResourceProviderTest.TransferInvalidSoftware/1@@@
@@@STEP_LOG_LINE@ResourceProviderTests_ResourceProviderTest.TransferInvalidSoftware_1@[17114:17114:0529/180822:15336467671:INFO:SkPixelRef.cpp(168)] ../../third_party/skia/src/core/SkPixelRef.cpp:168: failed assertion "pixels"@@@

Original issue's description:
> add asserts around results from requestLock (patchset #3 id:40001 of https://codereview.chromium.org/1155403003/)"
>
> This reverts commit 3953d360417655b8000df0951699121383db45c3.
>
> BUG=skia:
> TBR=
>
> Committed: https://skia.googlesource.com/skia/+/6980f5a96455c8062403c995a64b654a0e9a1319

TBR=
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1151573009
3 files changed