RDMA/ocrdma: Remove a set-but-not-used variable

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/ocrdma/ocrdma_ah.c

@@ -167,13 +167,11 @@ struct ib_ah *ocrdma_create_ah(struct ib_pd *ibpd, struct rdma_ah_attr *attr,
 	const struct ib_gid_attr *sgid_attr;
 	struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
 	struct ocrdma_dev *dev = get_ocrdma_dev(ibpd->device);
-	const struct ib_global_route *grh;
 
 	if ((attr->type != RDMA_AH_ATTR_TYPE_ROCE) ||
 	    !(rdma_ah_get_ah_flags(attr) & IB_AH_GRH))
 		return ERR_PTR(-EINVAL);
 
-	grh = rdma_ah_read_grh(attr);
 	if (atomic_cmpxchg(&dev->update_sl, 1, 0))
 		ocrdma_init_service_level(dev);