[package] ppp: remove pppoa coldplug, the hotplug handler has been confirmed for ueagle and solos

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25027 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/ppp/files/pppoa.sh

@@ -2,10 +2,6 @@ scan_pppoa() {
 	config_set "$1" device "pppoa-$1"
 }
 
-coldplug_interface_pppoa() {
-	setup_interface_pppoa x "$1"
-}
-
 stop_interface_pppoa() {
 	stop_interface_ppp "$1"
 }