remove IPKG_INSTROOT check from init script

Author: stangri

files/etc/init.d/adblock-fast

@@ -8,8 +8,6 @@ START=20
 USE_PROCD=1
 LC_ALL=C
 
-[ -n "${IPKG_INSTROOT}" ] && return 0
-
 if type extra_command 1>/dev/null 2>&1; then
 	extra_command 'allow' 'Allows domain in current block-list and config'
 	extra_command 'check' 'Checks if specified domain is found in current block-list'