This reverts commit 0492a744a5.
Reason for revert: Intel HD6000 + ANGLE DX9 fails the floor() test.
Original change's description:
> Add some SkSL intrinsics to our dm tests.
>
> This CL adds dm coverage for:
> - abs(half)
> - sign(half)
> - floor
> - ceil
>
> And creates test output for abs(int) and sign(int); these aren't covered
> by dm because they don't exist in ES2 and so are unsupported by Runtime
> Effects.
>
> Change-Id: Ia3e660408cef50dec8fa4b6bdc12906e96179f6e
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/360419
> Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
> Commit-Queue: John Stiles <johnstiles@google.com>
> Auto-Submit: John Stiles <johnstiles@google.com>
TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com
Change-Id: I62121efee9315b16e61e7d38659b6f629bdf8bd8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/362056
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
b576168c8c