Remove hack to stop tracking admin-api device IPs and last seen

Author: Fizzadar

synapse/storage/databases/main/client_ips.py

@@ -630,10 +630,6 @@ async def insert_client_ip(
         if user_agent == "sync-v3-proxy-":
             return
 
-        # Beeper hack: don't track admin API IPs as not user generated requests
-        if user_id == "@admin-api:beeper.com":
-            return
-
         if not now:
             now = int(self._clock.time_msec())
         key = (user_id, access_token, ip)