system/device_table.txt: /etc/random-seed is no more

So don't try to set the permissions of it.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

system/device_table.txt

@@ -11,7 +11,6 @@
 /etc					d	755	0	0	-	-	-	-	-
 /root					d	700	0	0	-	-	-	-	-
 /var/www				d	755	33	33	-	-	-	-	-
-/etc/random-seed			f	600	0	0	-	-	-	-	-
 /etc/shadow				f	600	0	0	-	-	-	-	-
 /etc/passwd				f	644	0	0	-	-	-	-	-
 /etc/network/if-up.d			d	755	0	0	-	-	-	-	-