i2pd: remove unneeded functions.sh

its included via rc.common, see
https://openwrt.org/docs/guide-developer/config-scripting

Signed-off-by: Dirk Neukirchen <plntyk.lede@plntyk.name>

net/i2pd/files/i2pd.init

@@ -14,7 +14,6 @@ PIDFILE=/var/run/i2pd.pid
 DATADIR=/var/lib/i2pd
 CONFFILE=/etc/i2pd/i2pd.conf
 
-. /lib/functions.sh
 
 
 i2pd_start() {