Remove conditional flavor text on blend GM.

This was breaking replay modes for no good reason.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1864253002

Review URL: https://codereview.chromium.org/1864253002
3 files changed