unbound: Drop certificates for local control connection

These are a cause of worry because they are sometimes generated with
an invalid timestamp and therefore render unbound being unusable.

There is no strong reason to use self-signed certificates for extra
security here.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/initscripts/system/unbound

@@ -507,11 +507,6 @@ case "$1" in
 
 		eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
 
-		# Create control keys at first run
-		if [ ! -r "/etc/unbound/unbound_control.key" ]; then
-			unbound-control-setup -d /etc/unbound &>/dev/null
-		fi
-
 		# Update configuration files
 		write_tuning_conf
 		write_forward_conf