Refactor: based: Drop code that uses PCMK_OPT_CLUSTER_IPC_LIMIT

This has no effect since commit ae3b5dc3. This block uses
PCMK_OPT_CLUSTER_IPC_LIMIT to set the client's queue_max member.
However, the IPC server code ignores queue_max if the client is a
Pacemaker daemon. It determines whether the client is a Pacemaker daemon
using the same criterion that's used to set the cib_is_daemon flag.

Signed-off-by: Reid Wahl <nrwahl@protonmail.com>