squid: Disable SSL support

The SSL support parts of squid are a great security
risk. The majority of all security issues has been
in this area. As we are not using any of that in
production we can as well disable SSL support.

This won't affect squid's possibility to forward
SSL connections with the CONNECT method.

lfs/squid

@@ -78,12 +78,12 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 		--libexecdir=/usr/lib/squid \
 		--localstatedir=/var \
 		--disable-ipv6 \
+		--disable-ssl \
 		--enable-poll \
 		--disable-icmp \
 		--disable-wccp \
 		--enable-ident-lookups \
 		--enable-storeio="aufs,diskd,ufs" \
-		--enable-ssl \
 		--enable-underscores \
 		--enable-http-violations \
 		--enable-removal-policies="heap,lru" \