Remove unused function in SkScan.h

There are two other FillPaths that are actually used.

Change-Id: I2064b2e7024d3342efabf8dd5703061787972bf1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/973697
Auto-Submit: Kaylee Lubick <kjlubick@google.com>
Reviewed-by: Daniel Dilan <danieldilan@google.com>
Commit-Queue: Daniel Dilan <danieldilan@google.com>
3 files changed