ntpclient: remove this packages from our repository

In OpenWrt 19.07 and OpenWrt master, there is a newer version of
ntpclient. We don't need to provide our variant of ntpclient.
Let's use the version from upstream as ntpclient is not preinstalled by
default on any Turris router.

net/ntpclient/Makefile

-#
-# Copyright (C) 2006-2014 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-
-PKG_NAME:=ntpclient
-PKG_VERSION:=2010_365
-PKG_RELEASE:=2
-
-PKG_SOURCE:=$(PKG_NAME)_$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=http://doolittle.icarus.com/ntpclient/
-PKG_MD5SUM:=a64689398f2df8933ee0d8da246e9eaa
-
-PKG_MAINTAINER:=Ted Hess <thess@kitschensync.net>
-
-PKG_LICENSE:=GPL-2.0
-
-PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-2010
-
-include $(INCLUDE_DIR)/package.mk
-
-define Package/ntpclient
-  SUBMENU:=Time Synchronization
-  SECTION:=net
-  CATEGORY:=Network
-  TITLE:=NTP (Network Time Protocol) client
-  URL:=http://doolittle.icarus.com/ntpclient/
-  DEPENDS:=+librt
-endef
-
-define Package/ntpclient/description
-	NTP client for setting system time from NTP servers.
-endef
-
-define Package/ntpclient/conffiles
-/etc/config/ntpclient
-endef
-
-MAKE_FLAGS += \
-	all adjtimex
-
-define Package/ntpclient/install
-	$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
-	$(INSTALL_DATA) ./files/ntpclient.hotplug $(1)/etc/hotplug.d/iface/20-ntpclient
-	$(INSTALL_DIR) $(1)/etc/config
-	$(INSTALL_CONF) ./files/ntpclient.config $(1)/etc/config/ntpclient
-	$(INSTALL_DIR) $(1)/usr/sbin
-	$(INSTALL_BIN) $(PKG_BUILD_DIR)/ntpclient $(1)/usr/sbin/
-	$(INSTALL_BIN) $(PKG_BUILD_DIR)/adjtimex $(1)/usr/sbin/
-	$(INSTALL_BIN) $(PKG_BUILD_DIR)/rate.awk $(1)/usr/sbin/
-endef
-
-$(eval $(call BuildPackage,ntpclient))

net/ntpclient/files/ntpclient.config

-config ntpserver
-	option hostname '0.openwrt.pool.ntp.org'
-	option port     '123'
-
-config ntpserver
-	option hostname '1.openwrt.pool.ntp.org'
-	option port     '123'
-
-config ntpserver
-	option hostname '2.openwrt.pool.ntp.org'
-	option port     '123'
-
-config ntpserver
-	option hostname '3.openwrt.pool.ntp.org'
-	option port     '123'
-
-config ntpdrift
-	option freq     '0'
-
-config ntpclient
-	option interval	600
-	#option count	10
-	#option interface wan

net/ntpclient/files/ntpclient.hotplug

-#!/bin/sh
-# Copyright (C) 2006-2014 OpenWrt.org
-
-. /lib/functions.sh
-
-unset SERVER
-unset PORT
-unset INTERVAL
-unset COUNT
-unset INTERFACE_GLOBAL
-
-NTPC=`which ntpclient`
-
-check_server() {
-	local hostname
-	local port
-	local interface
-	[ -n "$SERVER" ] && return
-	config_get hostname $1 hostname
-	config_get port $1 port
-	config_get interface $1 interface
-
-	[ -z "$interface" ] && interface=$INTERFACE_GLOBAL
-
-	[ -n "$interface" ] && {
-		# $INTERFACE is passed from hotplug event
-		[ "$interface" = "$INTERFACE" ] || return
-	}
-
-	[ -z "$hostname" ] && return
-	$NTPC -c 1 -p ${port:-123} -i 2 -h $hostname > /dev/null && { SERVER=$hostname; PORT=${port:-123}; }
-}
-
-set_drift() {
-	config_get freq $1 freq
-	[ -n "$freq" ] && adjtimex -f $freq >/dev/null
-}
-
-start_ntpclient() {
-	config_foreach set_drift ntpdrift
-	config_foreach check_server ntpserver
-	[ -z "$SERVER" ] && exit 0
-	logger starting ntpclient
-	$NTPC ${COUNT:+-c $COUNT} ${INTERVAL:+-i $INTERVAL} -s -l -D -p $PORT -h $SERVER 2> /dev/null
-}
-
-stop_ntpclient() {
-	logger stopping ntpclient
-	killall ntpclient
-}
-
-load_settings() {
-	local interval
-	local count
-	local iface
-	
-	config_get interval $1 interval
-	config_get count $1 count
-	config_get interface $1 interface
-	
-	[ -n "$count" ] && COUNT=$count
-	[ -n "$interval" ] && INTERVAL=$interval
-	[ -n "$interface" ] && INTERFACE_GLOBAL=$interface
-}
-
-config_load ntpclient
-config_foreach load_settings ntpclient
-
-NTP_RUNNING=`ps  | grep $NTPC | grep -v grep`
-FORIS_STEP=`uci -q get foris.wizard.allowed_step_max || echo 1`
-
-case "${ACTION:-ifup}" in
-	ifup)
-		[ -z "$NTP_RUNNING" ] && [ "$FORIS_STEP" -gt 4 ] && start_ntpclient 
-	;;
-	ifdown)
-		[ -n "$NTP_RUNNING" ] && stop_ntpclient 
-	;;
-esac

net/ntpclient/patches/100-daemon.patch

---- a/ntpclient.c
-+++ b/ntpclient.c
-@@ -611,7 +611,7 @@ int main(int argc, char *argv[]) {
- 	ntpc.cross_check=1;
- 
- 	for (;;) {
--		c = getopt( argc, argv, "c:" DEBUG_OPTION "f:g:h:i:lp:q:" REPLAY_OPTION "st");
-+		c = getopt( argc, argv, "c:" DEBUG_OPTION "f:g:h:i:lp:q:" REPLAY_OPTION "stD");
- 		if (c == EOF) break;
- 		switch (c) {
- 			case 'c':
-@@ -660,6 +660,10 @@ int main(int argc, char *argv[]) {
- 				(ntpc.cross_check)=0;
- 				break;
- 
-+			case 'D':
-+				daemon(0, 0);
-+				break;
-+
- 			default:
- 				usage(argv[0]);
- 				exit(1);