remove mdev, reduce tmpfs size

package/simpleinit/files/rc

@@ -5,10 +5,9 @@ mount -t proc proc /proc
 mount -t sysfs sys /sys
 mkdir -m 755 /dev/pts
 mount -t devpts devpts /dev/pts
-mount -t tmpfs -o size=8M tmpfs /tmp
+mount -t tmpfs -o size=1M tmpfs /tmp
 chmod 1777 /tmp
 mkdir -p /var/log
 mkdir -p /var/run
 mkdir -p /var/tmp
-mdev -s
 ifconfig lo 127.0.0.1 up