ptunnel-ng: remove package

It seems upstream author does not have
time to maintain this software anymore.
Please see v1.43 release note.

Signed-off-by: Yanase Yuki <dev@zpc.st>

net/ptunnel-ng/Makefile

@@ -1,41 +0,0 @@
-include $(TOPDIR)/rules.mk
-
-PKG_NAME:=ptunnel-ng
-PKG_VERSION:=1.42
-PKG_RELEASE:=2
-
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=https://codeload.github.com/lnslbrty/ptunnel-ng/tar.gz/v$(PKG_VERSION)?
-PKG_HASH:=5ee6b101e4e252ea98e3337da6542d73b7f33de49a89014276cc98a70142ab10
-
-PKG_LICENSE:=BSD-3
-PKG_LICENSE_FILES:=COPYING
-PKG_FIXUP:=autoreconf
-PKG_INSTALL:=1
-
-include $(INCLUDE_DIR)/package.mk
-
-define Package/ptunnel-ng
-  SECTION:=net
-  CATEGORY:=Network
-  DEPENDS:=+libpthread
-  TITLE:=PingTunnel [N]ew[G]eneration
-  MAINTAINER:=Toni Uhlig <matzeton@googlemail.com>
-  URL:=https://github.com/lnslbrty/ptunnel-ng
-endef
-
-define Package/ptunnel-ng/description
-	Tunnel TCP connections through ICMP.
-endef
-
-CONFIGURE_ARGS += \
-	--disable-pcap \
-	--disable-selinux \
-	--with-rngdev=/dev/urandom
-
-define Package/ptunnel-ng/install
-	$(INSTALL_DIR) $(1)/usr/sbin
-	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/$(PKG_NAME) $(1)/usr/sbin/$(PKG_NAME)
-endef
-
-$(eval $(call BuildPackage,ptunnel-ng))

net/ptunnel-ng/patches/010-musl.patch

@@ -1,22 +0,0 @@
---- a/src/ptunnel.h
-+++ b/src/ptunnel.h
-@@ -45,9 +45,6 @@
- #define PING_TUNNEL_H 1
- 
- #ifndef WIN32
--#ifdef HAVE_ICMPFILTER
--#include <linux/icmp.h>
--#endif
- #ifdef HAVE_SYS_UNISTD_H
- #include <sys/unistd.h>
- #endif
-@@ -56,6 +53,9 @@
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include <netdb.h>
-+#ifdef HAVE_ICMPFILTER
-+#include <linux/icmp.h>
-+#endif
- #include <pthread.h>
- #include <errno.h>
- #include <net/ethernet.h>