SF: VsyncTimeline::isVSyncInPhase should use display rate [unflagged]

Remove the flag for the fix in commit 4a719e88 so it will be enabled on android15-tests-dev (GSI) release.

Bug: 328352850
Bug: 355684882
Bug: 380359880
Test: see b/355684882
Flags: EXEMPT bugfix
Change-Id: I02deca58bfd9a2cf169c2e58995cc42eeb854c8d
Merged-In: I02deca58bfd9a2cf169c2e58995cc42eeb854c8d