RDMA/irdma: Remove irdma_sc_send_lsmm_nostag()

The function irdma_sc_send_lsmm_nostag is not used. So remove it.

Link: https://lore.kernel.org/r/20211011110128.4057-3-yanjun.zhu@linux.dev


Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>