More libfuzzer cleanups from GPU switchover

This was breaking the oss-fuzz build as is.

Bug: oss-fuzz:8701
Change-Id: I23ad21816a293356c91cd3bbc6276b2ed3ceafe6
Reviewed-on: https://skia-review.googlesource.com/132822
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Auto-Submit: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
3 files changed