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

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christian Benvenuti <benve@cisco.com>
Cc: Dave Goodell <dgoodell@cisco.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c

@@ -392,14 +392,12 @@ int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp,
 				void *data)
 {
 	int status = 0;
-	int vnic_idx;
 	struct ib_event ib_event;
 	enum ib_qp_state old_state;
 	struct usnic_transport_spec *trans_spec;
 	struct usnic_ib_qp_grp_flow *qp_flow;
 
 	old_state = qp_grp->state;
-	vnic_idx = usnic_vnic_get_index(qp_grp->vf->vnic);
 	trans_spec = (struct usnic_transport_spec *) data;
 
 	spin_lock(&qp_grp->lock);