smb: server: smb_direct_disconnect_rdma_connection() already wakes all waiters on...

smb: server: smb_direct_disconnect_rdma_connection() already wakes all waiters on error

There's no need to care about pending or credit counters when we
already disconnecting.

And all related wait_event conditions already check for broken
connections too.

This will simplify the code and makes the following changes simpler.

Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>