squid: disable netfilter-conntrack explicitly

Signed-off-by: Nicolas Thill <nico@openwrt.org>

net/squid/Makefile

 
 PKG_NAME:=squid
 PKG_VERSION:=3.4.11
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_LICENSE:=GPL-2.0
 PKG_MAINTAINER:=Luka Perkov <luka@openwrt.org>
 	--disable-auth-basic \
 	--disable-arch-native \
 	--with-krb5-config=no \
-	--without-libcap
+	--without-libcap \
+	--without-netfilter-conntrack \
 
 CONFIGURE_VARS += \
 	ac_cv_header_linux_netfilter_ipv4_h=yes \