MFC r257736 (by pjd):

- Remove mac_get_fd/mac_set_fd - those are not syscalls. The
    __mac_get_fd() and __mac_set_fd() syscalls are listed earlier.
  - Correct typo in syscall name. It should be sched_rr_get_interval,
    not sched_rr_getinterval.

sys/kern/capabilities.conf

@@ -385,13 +385,6 @@ listen
 ##
 lseek
 
-##
-## Allow MAC label operations by file descriptor, subject to capability
-## rights.
-##
-mac_get_fd
-mac_set_fd
-
 ##
 ## Allow simple VM operations on the current process.
 ##
@@ -552,7 +545,7 @@ sched_get_priority_min
 ##
 sched_getparam
 sched_getscheduler
-sched_rr_getinterval
+sched_rr_get_interval
 sched_setparam
 sched_setscheduler
 sched_yield