remove ArenaAlloc reset() from SkShaper_coretext

Change-Id: I9950c4663e304cda953ab8d17fe76f5e5c3957e7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/312844
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Herb Derby <herb@google.com>
1 file changed