[packages/net/coova-chilli]: remove PKG_FIXUP, it's not needed anymore

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>



git-svn-id: svn://svn.openwrt.org/openwrt/packages@38316 3c298f89-4303-0410-b956-a3cf2f4a3e73