RDMA/irdma: Remove the redundant variable

In the function irdma_puda_get_next_send_wqe, the variable wqe
is not necessary. So remove it.

Link: https://lore.kernel.org/r/20220323230135.291813-1-yanjun.zhu@intel.com


Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>