mtr: bump to latest git version (newdns branch)

This fixes the musl build issues and the need to specially patch for
uClibc at the same time. Fixes:
http://autobuild.buildroot.net/results/deb/debeb3ded02c3de63182c3433ff02062192d3fd1/

Also add hash file.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/mtr/mtr.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256	12a6a94c0ec04d508de27eda5f5ba91f50d4b5fe74a98aca0973e2c16a42555a	mtr-66de3ecbab28b054b868a73fbb57f30549d770ac.tar.gz

package/mtr/mtr.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MTR_VERSION = v0.86
+MTR_VERSION = 66de3ecbab28b054b868a73fbb57f30549d770ac
 MTR_SITE = $(call github,traviscross,mtr,$(MTR_VERSION))
 MTR_AUTORECONF = YES
 MTR_CONF_OPTS = --without-gtk
@@ -12,14 +12,4 @@ MTR_DEPENDENCIES = host-pkgconf $(if $(BR2_PACKAGE_NCURSES),ncurses)
 MTR_LICENSE = GPLv2
 MTR_LICENSE_FILES = COPYING
 
-# uClibc has res_ninit but not res_nmkquery
-ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
-define MTR_DISABLE_RES_NINIT
-	$(SED) 's/#ifdef res_ninit/#if 0/' \
-		$(@D)/dns.c
-endef
-endif
-
-MTR_POST_PATCH_HOOKS += MTR_DISABLE_RES_NINIT
-
 $(eval $(autotools-package))