d/rules: disable libipq

This library has been deprecated in favour of libnetfilter_queue a long
time ago.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>

debian/iptables-dev.install

@@ -2,4 +2,3 @@ include/linux/netfilter_ipv4/ip_queue.h usr/include/linux/netfilter_ipv4/
 lib/lib*.so
 lib/pkgconfig usr/lib
 usr/include
-usr/share/man/man3

debian/rules

@@ -9,7 +9,7 @@ _shlibdeps := \
   -l$(CURDIR)/debian/build/extensions/.libs
 
 _configure := \
-  --enable-libipq \
+  --disable-libipq \
   --enable-devel \
   --libdir=/lib \
   --with-xtlibdir=/lib/xtables