Remove unused code

Signed-off-by: Antonio Murdaca <runcom@linux.com>

selinux/selinux.go

@@ -34,7 +34,6 @@ const (
 
 var (
 	assignRegex           = regexp.MustCompile(`^([^=]+)=(.*)$`)
-	spaceRegex            = regexp.MustCompile(`^([^=]+) (.*)$`)
 	mcsList               = make(map[string]bool)
 	selinuxfs             = "unknown"
 	selinuxEnabled        = false // Stores whether selinux is currently enabled
@@ -269,10 +268,6 @@ func mcsDelete(mcs string) {
 	mcsList[mcs] = false
 }
 
-func mcsExists(mcs string) bool {
-	return mcsList[mcs]
-}
-
 func IntToMcs(id int, catRange uint32) string {
 	var (
 		SETSIZE = int(catRange)