Revert "Plumb the full dst color info through color filters in SkVM"

This reverts commit 61c7888dfad8c1b9ddc127ac932d3d0199b2c10a.

Reason for revert: Unexpected gm diffs

Original change's description:
> Plumb the full dst color info through color filters in SkVM
>
> Used in https://skia-review.googlesource.com/c/skia/+/406296
> to evaluate shaders (as children of color filters) correctly.
>
> Change-Id: I2337b062da3fded9e61efe21c6cf74ef08a56753
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/416998
> Reviewed-by: Mike Reed <reed@google.com>
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Reviewed-by: Mike Klein <mtklein@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>

TBR=mtklein@google.com,brianosman@google.com,reed@google.com,michaelludwig@google.com

Change-Id: I234282de535017db64c46aba905e54f532596de9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/417198
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
11 files changed