Revert of Add OpenGL support to Linux viewer (patchset #5 id:80001 of https://coderev...

Revert of Add OpenGL support to Linux viewer (patchset #5 id:80001 of https://codereview.chromium.org/2011473003/ )

Reason for revert:
Build-Ubuntu-GCC-Arm7-Debug-Android_Vulkan is broken and this patch prevents the revert of the culprit

Original issue's description:
> Add OpenGL support to Linux viewer
>
> Also adds a command line option (--vulkan) to choose between
> Vulkan and OpenGL.
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2011473003
>
> Committed: https://skia.googlesource.com/skia/+/10b3815a11c39b154ec7b74a2af43e019b50d48c

TBR=egdaniel@google.com,bsalomon@google.com,brianosman@google.com,jvanverth@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2015213002