libnetfilter-cthelper: remove

conntrack was moved to packages where this is used. This will be moved
there as well.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

package/libs/libnetfilter-cthelper/Makefile

-#
-# Copyright (C) 2009-2013 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-
-PKG_NAME:=libnetfilter_cthelper
-PKG_VERSION:=1.0.0
-PKG_RELEASE:=2
-
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
-PKG_SOURCE_URL:= \
-	http://www.netfilter.org/projects/libnetfilter_cthelper/files/ \
-	ftp://ftp.netfilter.org/pub/libnetfilter_cthelper/
-PKG_HASH:=07618e71c4d9a6b6b3dc1986540486ee310a9838ba754926c7d14a17d8fccf3d
-
-PKG_FIXUP:=autoreconf
-PKG_LICENSE:=GPL-2.0+
-
-PKG_INSTALL:=1
-
-include $(INCLUDE_DIR)/package.mk
-
-define Package/libnetfilter-cthelper
-  SECTION:=libs
-  CATEGORY:=Libraries
-  DEPENDS:=+libmnl
-  TITLE:=API to the in-kernel connection tracking helper infrastructure
-  URL:=http://www.netfilter.org/projects/libnetfilter_cthelper/
-  ABI_VERSION:=0
-endef
-
-define Package/libnetfilter-cthelper/description
- libnetfilter_cthelper is a userspace library providing a programming
- interface (API) to the in-kernel connection tracking helpers. 
- This library is currently used by conntrack-tools.
-endef
-
-TARGET_CFLAGS += $(FPIC)
-
-CONFIGURE_ARGS += \
-	--enable-static \
-	--enable-shared \
-
-define Build/InstallDev
-	$(INSTALL_DIR) $(1)/usr/include/libnetfilter_cthelper
-	$(CP) \
-		$(PKG_INSTALL_DIR)/usr/include/libnetfilter_cthelper/*.h \
-		$(1)/usr/include/libnetfilter_cthelper/
-
-	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) \
-		$(PKG_INSTALL_DIR)/usr/lib/libnetfilter_cthelper.{so*,a,la} \
-		$(1)/usr/lib/
-
-	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
-	$(CP) \
-		$(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libnetfilter_cthelper.pc \
-		$(1)/usr/lib/pkgconfig/
-endef
-
-define Package/libnetfilter-cthelper/install
-	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) \
-		$(PKG_INSTALL_DIR)/usr/lib/libnetfilter_cthelper.so.* \
-		$(1)/usr/lib/
-endef
-
-$(eval $(call BuildPackage,libnetfilter-cthelper))