The 'rdma_dev_res' parameter is not used in rdma_poll_cq(), so remove it.

Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Message-Id: <20190314153031.7197-3-kamalheib1@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>