dnsmasq: don't source functions.sh twice

It's already pulled in from /etc/rc.common.

Fixes: openwrt#13758

Fixes: 6b23836 ("package: avoid the use of eval to parse ipcalc.sh output")

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

package/network/services/dnsmasq/files/dnsmasq.init

@@ -1,8 +1,6 @@
 #!/bin/sh /etc/rc.common
 # Copyright (C) 2007-2012 OpenWrt.org
 
-. /lib/functions.sh
-
 START=19
 
 USE_PROCD=1