Remove restrictive format pattern for Fontconfig matching

This pattern pushes CFF fonts too far low in the list. Instead
it is enough to rely on the isValidPattern function to skip
Type 1 fonts.

BUG=skia:5846
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2410063002

Review-Url: https://codereview.chromium.org/2410063002
1 file changed