smack: we don't need the special labels exported, hence don't

src/shared/smack-util.c

@@ -27,6 +27,9 @@
 #include "path-util.h"
 #include "smack-util.h"
 
+#define SMACK_FLOOR_LABEL "_"
+#define SMACK_STAR_LABEL  "*"
+
 bool mac_smack_use(void) {
 #ifdef HAVE_SMACK
         static int cached_use = -1;

src/shared/smack-util.h

@@ -25,9 +25,6 @@
 
 #include <stdbool.h>
 
-#define SMACK_FLOOR_LABEL "_"
-#define SMACK_STAR_LABEL  "*"
-
 bool mac_smack_use(void);
 
 int mac_smack_fix(const char *path, bool ignore_enoent, bool ignore_erofs);