RDMA/irdma: Remove the repeated declaration

Functions 'irdma_alloc_ws_node_id' and 'irdma_free_ws_node_id' are
declared twice, so remove the repeated declaration.

Link: https://lore.kernel.org/r/1629861674-53343-1-git-send-email-zhangshaokun@hisilicon.com


Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>