Revert "fixed VK geometry shaders"

This reverts commit eef1ed0b1f6366c94c7a9697df6595dfc0476d7d.

Reason for revert: breaking tree

Original change's description:
> fixed VK geometry shaders
> 
> Bug: skia:
> Change-Id: Ia26a99a6b85dba97e259525c4af0f4bdc464d804
> Reviewed-on: https://skia-review.googlesource.com/c/184561
> Reviewed-by: Chris Dalton <csmartdalton@google.com>
> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

TBR=csmartdalton@google.com,ethannicholas@google.com

Change-Id: I6d88cc56a582b4bb58e06621bfb8a892389ef46e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/c/185694
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>