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>
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 1a18ca3..330c392 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -83,7 +83,7 @@
 	Opt_actimeo,
 	Opt_namelen,
 	Opt_mountport,
-	Opt_mountprog, Opt_mountvers,
+	Opt_mountvers,
 	Opt_nfsvers,
 
 	/* Mount options that take string arguments */
@@ -137,7 +137,6 @@
 	{ 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 @@
 				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 @@
 	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) {