Revert "ccpr: Implement conics"

This reverts commit 98b241573e6083c4c7f0ce9e30cc214c4da1a8ba.

Reason for revert: TSAN not happy

Original change's description:
> ccpr: Implement conics
> 
> Bug: skia:
> Change-Id: I4bae8b059072af987abb7b2d9c57fe08f783d680
> Reviewed-on: https://skia-review.googlesource.com/120040
> Commit-Queue: Chris Dalton <csmartdalton@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>

TBR=egdaniel@google.com,bsalomon@google.com,csmartdalton@google.com

Change-Id: Ic29bf660f042c20b7e4492b03400412e378dbb8a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/121717
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
13 files changed