Revert "Transform vertices for distance field glyphs on CPU."

This reverts commit 0215e39d7e415d0530231df6ad20d5f215c72152.

Reason for revert: break intel 540 and HD2000 intel release bots on gltestthreading gm  dftext_blob_pers

Original change's description:
> Transform vertices for distance field glyphs on CPU.
> 
> This allows batching of DF draws with different view matrices.
> 
> For perspective matrices this means the transformed position vertex
> attribute must have w values. Currently, non-perspective DF draws still
> use 2 component positions, though this could be changed in the future.
> Consequently, perspective draws can batch with other perspective draws
> but not non-perspective draws.
> 
> Adds a GM to test batching and reusing the same blobs with both perspective
> and non-perspective matrices.
> 
> Change-Id: I0e42c5449ebf3a5a54025dbcdec824d904d5bd9e
> Reviewed-on: https://skia-review.googlesource.com/79900
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Jim Van Verth <jvanverth@google.com>

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

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: Idc658d9263976d5b5e00a5026c5d6d3c8f4bdc2d
Reviewed-on: https://skia-review.googlesource.com/86560
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
14 files changed