Revert "Use unnormalized coords all the way through with GL_TEXTURE_RECTANGLE textures."

This reverts commit 10273c1d5fe18f41a62c5ff4faf8bbdb5d5656cc.

Reason for revert: bad gms

Original change's description:
> Use unnormalized coords all the way through with GL_TEXTURE_RECTANGLE textures.
> 
> We used to unnormalize them in the shader via SkSL.
> 
> This allows us to support GL_TEXTURE_RECTANGLE without having textureSize()
> available in GLSL.
> 
> Change-Id: Ibe63a302228811933ef000251db4cad9aaf4f2ea
> Reviewed-on: https://skia-review.googlesource.com/c/174068
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>

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

Change-Id: I9bf38e1040578becba28ac8cccd81e2af2844278
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/175252
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
13 files changed