xprtrdma: Remove unused fields from rpcrdma_ia

Clean up. The last use of these fields was in commit 173b8f49
("xprtrdma: Demote "connect" log messages") .
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

net/sunrpc/xprtrdma/xprt_rdma.h

@@ -80,8 +80,6 @@ struct rpcrdma_ia {
 	bool			ri_implicit_roundup;
 	enum ib_mr_type		ri_mrtype;
 	unsigned long		ri_flags;
-	struct ib_qp_attr	ri_qp_attr;
-	struct ib_qp_init_attr	ri_qp_init_attr;
 };
 
 enum {