Revert "reimpl parts of arctTo using doubles to handle shallow angles"

This reverts commit 1ec17042ff3d1a97eff851723e918edcb3705025.

Reason for revert: *SAN bots + G3 roller breakage

Original change's description:
> reimpl parts of arctTo using doubles to handle shallow angles
> 
> Bug: 982968
> Change-Id: Ieaf70a406265876655447bd0584717063483808f
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/226847
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>

TBR=robertphillips@google.com,reed@google.com

Change-Id: If27d78b5d01815ded5354922ef6e2e4eb92f7a3b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 982968
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/227056
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
4 files changed