Remove redundant except

Author: tulir

mautrix/bridge/matrix.py

@@ -231,8 +231,6 @@ async def wait_for_connection(self) -> None:
         await self.check_versions()
         try:
             await self.az.intent.whoami()
-        except (MUnknownToken, MExclusive):
-            raise
         except MForbidden:
             self.log.debug(
                 "Whoami endpoint returned M_FORBIDDEN, "