Revert "hwc: Set ioprio for vsync thread"

This reverts commit 5eeb1e2f3701e7fae202984e1200ee6f466fda72.

The original commit requires I335816304573149c1d96c5e6ea804a49e7695996
in system/core that comes from Lineage and is not present in AOSP or
CAF.

FP-Id: ST-890
Change-Id: Ice803638d5c725863dbe7f95a971c76a2d7de80d
1 file changed