mount(1): do not include system headers

commands/mount/Makefile

@@ -1,5 +1,4 @@
 PROG=	mount
-CPPFLAGS+= -I${NETBSDSRCDIR}/servers
 BINDIR=	/bin
 BINMODE= 4755
 MAN=

commands/mount/mount.c

@@ -2,19 +2,12 @@
 
 #include <errno.h>
 #include <sys/types.h>
-#include <limits.h>
 #include <stdlib.h>
-#include <dirent.h>
 #include <string.h>
 #include <sys/mount.h>
 #include <unistd.h>
-#include <fcntl.h>
-#include <minix/config.h>
-#include <minix/const.h>
 #include <minix/minlib.h>
-#include <sys/svrctl.h>
 #include <stdio.h>
-#include "mfs/const.h"
 #include <fstab.h>
 
 #define MINIX_FS_TYPE "mfs"