fs/ntfs3: Remove unnecesarry mount option noatime

Remove unnecesarry mount option noatime because this will be handled
by VFS. Our option parser will never get opt like this.
Acked-by: NChristian Brauner <christian.brauner@ubuntu.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NPali Rohár <pali@kernel.org>
Signed-off-by: NKari Argillander <kari.argillander@gmail.com>
Signed-off-by: NKonstantin Komarov <almaz.alexandrovich@paragon-software.com>

Documentation/filesystems/ntfs3.rst

@@ -85,10 +85,6 @@ acl			Support POSIX ACLs (Access Control Lists). Effective if
 			supported by Kernel. Not to be confused with NTFS ACLs.
 			The option specified as acl enables support for POSIX ACLs.
 
-noatime			All files and directories will not update their last access
-			time attribute if a partition is mounted with this parameter.
-			This option can speed up file system operation.
-
 ===============================================================================
 
 ToDo list

fs/ntfs3/super.c

@@ -223,7 +223,6 @@ enum Opt {
 	Opt_nohidden,
 	Opt_showmeta,
 	Opt_acl,
-	Opt_noatime,
 	Opt_nls,
 	Opt_prealloc,
 	Opt_no_acs_rules,
@@ -242,7 +241,6 @@ static const match_table_t ntfs_tokens = {
 	{ Opt_sparse, "sparse" },
 	{ Opt_nohidden, "nohidden" },
 	{ Opt_acl, "acl" },
-	{ Opt_noatime, "noatime" },
 	{ Opt_showmeta, "showmeta" },
 	{ Opt_nls, "nls=%s" },
 	{ Opt_prealloc, "prealloc" },
@@ -333,9 +331,6 @@ static noinline int ntfs_parse_options(struct super_block *sb, char *options,
 			ntfs_err(sb, "support for ACL not compiled in!");
 			return -EINVAL;
 #endif
-		case Opt_noatime:
-			sb->s_flags |= SB_NOATIME;
-			break;
 		case Opt_showmeta:
 			opts->showmeta = 1;
 			break;
@@ -587,8 +582,6 @@ static int ntfs_show_options(struct seq_file *m, struct dentry *root)
 		seq_puts(m, ",prealloc");
 	if (sb->s_flags & SB_POSIXACL)
 		seq_puts(m, ",acl");
-	if (sb->s_flags & SB_NOATIME)
-		seq_puts(m, ",noatime");
 
 	return 0;
 }