SUNRPC: Remove unused struct rpc_clnt field cl_protname

Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>

include/linux/sunrpc/clnt.h

@@ -41,7 +41,6 @@ struct rpc_clnt {
 				cl_vers,	/* RPC version number */
 				cl_maxproc;	/* max procedure number */
 
-	const char *		cl_protname;	/* protocol name */
 	struct rpc_auth *	cl_auth;	/* authenticator */
 	struct rpc_stat *	cl_stats;	/* per-program statistics */
 	struct rpc_iostats *	cl_metrics;	/* per-client statistics */

net/sunrpc/clnt.c

@@ -348,7 +348,6 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
 	rcu_assign_pointer(clnt->cl_xprt, xprt);
 	clnt->cl_procinfo = version->procs;
 	clnt->cl_maxproc  = version->nrprocs;
-	clnt->cl_protname = program->name;
 	clnt->cl_prog     = args->prognumber ? : program->number;
 	clnt->cl_vers     = version->number;
 	clnt->cl_stats    = program->stats;