Delete workaround for matching bitmap and pixel ref rowbytes

We now handle this in:
https://googleplex-android-review.git.corp.google.com/#/c/1051261/

BUG=skia:4538
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1992143003

Review-Url: https://codereview.chromium.org/1992143003
1 file changed