Revert "UBUNTU: SAUCE: cgroup mount: ignore nsroot="

BugLink: http://bugs.launchpad.net/bugs/1584163

This reverts commit f7d70a0c.

Cc: Serge Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>

kernel/cgroup.c

@@ -1680,10 +1680,6 @@ static int parse_cgroupfs_options(char *data, struct cgroup_sb_opts *opts)
 			opts->none = true;
 			continue;
 		}
-		if (!strncmp(token, "nsroot=", 7)) {
-			/* ignore nsroot= copied from mountinfo */
-			continue;
-		}
 		if (!strcmp(token, "all")) {
 			/* Mutually exclusive option 'all' + subsystem name */
 			if (one_ss)