Remove neglected fillOptions function from nanobench.

Change-Id: I8d0704a73c80db6729811dc4ec343c409e6a2fb3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/448838
Auto-Submit: Greg Daniel <egdaniel@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
2 files changed