Hygiene: Fix add of no-position-fixed

Don't add no-position-fixed for browsers _supports_ fixed positions.

Follow up: I9d1ff1725ba43956d1b7f1f9c2732ce9b2e80392

Bug: T85258
Change-Id: Iab58999e43f1654d76589e8fb53a2e0e927e1ac8
Merge "Hygiene: Fix add of no-position-fixed"