iproute: Remove stale patch

pkgs/os-specific/linux/iproute/device-checking.patch

@@ -1,32 +0,0 @@
-From f1b66ff83a0babbe99fef81b3a960d7a4ce8dbc6 Mon Sep 17 00:00:00 2001
-From: vadimk <vadim4j@gmail.com>
-Date: Sat, 30 Aug 2014 15:06:00 +0300
-Subject: ip link: Remove unnecessary device checking
-
-The real checking is performed later in iplink_modify(..) func which
-checks device existence if NLM_F_CREATE flag is set.
-
-Also it fixes the case when impossible to add veth link which was
-caused by 9a02651a87 (ip: check for missing dev arg when doing VF rate)
-because these devices are not exist yet.
-
-Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
-Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
-Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
-
-diff --git a/ip/iplink.c b/ip/iplink.c
-index 1a907d9..ea06871 100644
---- a/ip/iplink.c
-+++ b/ip/iplink.c
-@@ -593,8 +593,6 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req,
- 				duparg2("dev", *argv);
- 			*dev = *argv;
- 			dev_index = ll_name_to_index(*dev);
--			if (dev_index == 0)
--				invarg("Unknown device", *argv);
- 		}
- 		argc--; argv++;
- 	}
--- 
-cgit v0.10.1
-