NFS: Remove support for the 'mountprog' option

Remove the mount option that allows users to specify an alternate mountd
program number.  The client hasn't support setting an alternate mountd
program number for a very long time.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/internal.h

@@ -52,7 +52,6 @@ struct nfs_parsed_mount_data {
 		struct sockaddr_in	address;
 		char			*hostname;
 		char			*export_path;
-		unsigned int		program;
 		int			protocol;
 	} nfs_server;
 };

fs/nfs/super.c

@@ -83,7 +83,7 @@ enum {
 	Opt_actimeo,
 	Opt_namelen,
 	Opt_mountport,
-	Opt_mountprog, Opt_mountvers,
+	Opt_mountvers,
 	Opt_nfsvers,
 
 	/* Mount options that take string arguments */
@@ -137,7 +137,6 @@ static match_table_t nfs_mount_option_tokens = {
 	{ Opt_userspace, "retry=%u" },
 	{ Opt_namelen, "namlen=%u" },
 	{ Opt_mountport, "mountport=%u" },
-	{ Opt_mountprog, "mountprog=%u" },
 	{ Opt_mountvers, "mountvers=%u" },
 	{ Opt_nfsvers, "nfsvers=%u" },
 	{ Opt_nfsvers, "vers=%u" },
@@ -786,13 +785,6 @@ static int nfs_parse_mount_options(char *raw,
 				return 0;
 			mnt->mount_server.port = option;
 			break;
-		case Opt_mountprog:
-			if (match_int(args, &option))
-				return 0;
-			if (option < 0)
-				return 0;
-			mnt->mount_server.program = option;
-			break;
 		case Opt_mountvers:
 			if (match_int(args, &option))
 				return 0;
@@ -1082,7 +1074,6 @@ static int nfs_validate_mount_data(void *options,
 	args->acdirmin		= 30;
 	args->acdirmax		= 60;
 	args->mount_server.protocol = XPRT_TRANSPORT_UDP;
-	args->mount_server.program = NFS_MNT_PROGRAM;
 	args->nfs_server.protocol = XPRT_TRANSPORT_TCP;
 
 	switch (data->version) {