LU-6655 ptlrpc: skip delayed replay requests

LU-6655 ptlrpc: skip delayed replay requests

During recovery, there could be some delayed replay requests
after the final recovery completion ping request was handled,
and it should be skipped.

Change-Id: Ie0d5ff92c75f9d078b8ae28e899d4a821113194f
Signed-off-by: Hongchao Zhang <hongchao.zhang@intel.com>
Reviewed-on: https://review.whamcloud.com/23205
Reviewed-by: Fan Yong <fan.yong@intel.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>