Revert of these _procs_arm are not used when we have NEON (patchset #1 id:1 of https...

Revert of these _procs_arm are not used when we have NEON (patchset #1 id:1 of https://codereview.chromium.org/1587983004/ )

Reason for revert:
Breaks Chrome roll:

https://build.chromium.org/p/tryserver.chromium.android/builders/android_chromium_gn_compile_rel/builds/8391/steps/compile%20%28with%20patch%29/logs/stdio

Original issue's description:
> these _procs_arm are not used when we have NEON
>
> BUG=skia:4798
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1587983004
> CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
>
> Committed: https://skia.googlesource.com/skia/+/349dcc99b69f27ab834232796371e678625078e0

TBR=msarett@google.com,mtklein@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4798

Review URL: https://codereview.chromium.org/1589633005