ell: remove unused patch

Commit cc7bce67b ('ell: update to 0.8') removed the patch from SRC_URI
but forgot to delete it from the git tree.

Signed-off-by: Martin Hundebøll <martin@geanix.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-core/ell/ell/0001-dhcp-include-if_arp.h-from-libc-instead-of-linux-hea.patch

@@ -1,39 +0,0 @@
-From d8236d1d789f496a193dae5d2a15d706b81f6482 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Martin=20Hundeb=C3=B8ll?= <martin@geanix.com>
-Date: Thu, 12 Jul 2018 10:19:50 +0200
-Subject: [PATCH] dhcp: include if_arp.h from libc instead of linux headers
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-To: ell@lists.01.org
-
-Compilation with musl libc fails due to redefinition of 'struct
-arp{req,req_old,hdr}' in linux/if_arp.h, since it is already defined and
-included in net/if_arp.h (through net/ethernet.h -> net/if_ether.h).
-
-The only symbols used from if_arp.h is ARPHRD_ETHER, so it should be
-safe to avoid the compile error by including the if_arp.h header from
-the c-library instead.
-
-Upstream-Status: Backport [https://lists.01.org/pipermail/ell/2018-July/001244.html]
-Signed-off-by: Martin Hundebøll <martin@geanix.com>
----
- ell/dhcp.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/ell/dhcp.c b/ell/dhcp.c
-index 6c90370..0d99f74 100644
---- a/ell/dhcp.c
-+++ b/ell/dhcp.c
-@@ -27,7 +27,7 @@
- #include <netinet/ip.h>
- #include <net/ethernet.h>
- #include <linux/types.h>
--#include <linux/if_arp.h>
-+#include <net/if_arp.h>
- #include <errno.h>
- #include <time.h>
- 
--- 
-2.18.0
-