SF: enable vsync_predictor_predicts_within_threshold behaviour on resync_on_tx

resync_on_tx depends on vsync_predictor_predicts_within_threshold which is only enable on VRR displays. This CL changes the behaviour of vsync_predictor_predicts_within_threshold to be for all devices.

Bug: 425994753
Test: presubmit
Flag: com.android.graphics.surfaceflinger.flags.resync_on_tx
Change-Id: I5420259e269ea9a3b3e6617a820586c3c2707a7d