Revert "tici: give loggerd rt priority (#21503)"

This reverts commit 0a50cf851e79342cf3db01033bc91516c504cbea.

old-commit-hash: 54a4eeb0fccd92c3b2f872175cfedf136a1cfc71

selfdrive/debug/check_timings.py

@@ -12,12 +12,13 @@ ts = defaultdict(lambda: deque(maxlen=100))
 
 if __name__ == "__main__":
   while True:
-    time.sleep(1)
     print()
     for s, sock in socks.items():
       msgs = messaging.drain_sock(sock)
       for m in msgs:
         ts[s].append(m.logMonoTime / 1e6)
 
-      d = np.diff(ts[s])
-      print(f"{s:17} {np.mean(d):.2f} {np.std(d):.2f} {np.max(d):.2f} {np.min(d):.2f}")
+      if len(ts[s]) == ts[s].maxlen:
+        d = np.diff(ts[s])
+        print(f"{s:17} {np.mean(d):.2f} {np.std(d):.2f} {np.max(d):.2f} {np.min(d):.2f}")
+    time.sleep(1)