remove rtshield

old-commit-hash: f58969cb6076d2b4a37840682a14bf05894ba17b

release/files_common

@@ -71,7 +71,6 @@ selfdrive/__init__.py
 selfdrive/sentry.py
 selfdrive/tombstoned.py
 selfdrive/updated.py
-selfdrive/rtshield.py
 selfdrive/statsd.py
 
 system/logmessaged.py

selfdrive/rtshield.py

@@ -1,21 +0,0 @@
-#!/usr/bin/env python3
-import os
-import time
-from typing import NoReturn
-
-from openpilot.common.realtime import set_core_affinity, set_realtime_priority
-
-# RT shield - ensure CPU 3 always remains available for RT processes
-#   runs as SCHED_FIFO with minimum priority to ensure kthreads don't
-#   get scheduled onto CPU 3, but it's always preemptible by realtime
-#   openpilot processes
-
-def main() -> NoReturn:
-  set_core_affinity([int(os.getenv("CORE", "3")), ])
-  set_realtime_priority(1)
-
-  while True:
-    time.sleep(0.000001)
-
-if __name__ == "__main__":
-  main()