remove unused drawText entry-points in LiteDL

Bug: skia:
Change-Id: Iac610ed1f25b5aa8f2ec91b6f838754b3978cb5e
Reviewed-on: https://skia-review.googlesource.com/c/175437
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
2 files changed