selinux: remove a duplicated include

The "linux/parser.h" header was included twice, we only need it once.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202504121945.Q0GDD0sG-lkp@intel.com/
Signed-off-by: Paul Moore <paul@paul-moore.com>

Author: pcmoore

security/selinux/ss/services.c

@@ -49,7 +49,6 @@
 #include <linux/parser.h>
 #include <linux/vmalloc.h>
 #include <linux/lsm_hooks.h>
-#include <linux/parser.h>
 #include <net/netlabel.h>
 
 #include "flask.h"