relayd: Update to latest tip of trunk

Drop the patch fixing an issue already addressed upstream

Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit 616991508e)
Signed-off-by: Armin Kuster <akuster808@gmail.com>

meta-networking/recipes-connectivity/relayd/relayd/0001-rtnl_flush-Error-on-failed-write.patch

@@ -1,34 +0,0 @@
-From 2fa326b26dc479942367dc4283e2f87372403988 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Sat, 17 Jun 2017 09:32:04 -0700
-Subject: [PATCH] rtnl_flush: Error on failed write()
-
-Fixes
-route.c:45:2: error: ignoring return value of 'write', declared with attribute warn_unused_result [-Werror=unused-result]
-|   write(fd, "-1", 2);
-|   ^~~~~~~~~~~~~~~~~~
-
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
-Upstream-Status: Submitted
-
- route.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/route.c b/route.c
-index c552d1f..fc5c31e 100644
---- a/route.c
-+++ b/route.c
-@@ -42,7 +42,8 @@ static void rtnl_flush(void)
- 	if (fd < 0)
- 		return;
- 
--	write(fd, "-1", 2);
-+	if (write(fd, "-1", 2) < 0 )
-+		perror("write");
- 	close(fd);
- }
- 
--- 
-2.13.1
-

meta-networking/recipes-connectivity/relayd/relayd_git.bb

@@ -5,11 +5,9 @@ LIC_FILES_CHKSUM = "file://main.c;endline=17;md5=86aad799085683e0a2e1c2684a20bab
 
 DEPENDS = "libubox"
 
-SRC_URI = "git://git.openwrt.org/project/relayd.git;branch=master \
-           file://0001-rtnl_flush-Error-on-failed-write.patch \
-"
+SRC_URI = "git://git.openwrt.org/project/relayd.git;branch=master"
 
-SRCREV = "f4d759be54ceb37714e9a6ca320d5b50c95e9ce9"
+SRCREV = "f646ba40489371e69f624f2dee2fc4e19ceec00e"
 PV = "0.0.1+git${SRCPV}"
 
 UPSTREAM_CHECK_COMMITS = "1"