libbsd: drop obsolete patch

This was only needed with old pkg-config, but we have 0.29.2 so this can be
dropped.

(From OE-Core rev: 27605fc88d0dc8021abeccc38bab286f56a92736)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/libbsd/libbsd/0001-src-libbsd-overlay.pc.in-Set-Cflags-to-use-I-instead.patch

@@ -1,33 +0,0 @@
-From b6972f1c29ebf073cbe19a4a669ee093259792a0 Mon Sep 17 00:00:00 2001
-From: Fabio Berton <fabio.berton@ossystems.com.br>
-Date: Mon, 30 Jan 2017 12:00:33 -0200
-Subject: [PATCH] src/libbsd-overlay.pc.in: Set Cflags to use -I instead of
- -isystem
-Organization: O.S. Systems Software LTDA.
-
-pkg-config currently only handles -I and -L correctly, but misses
--isystem, so we need to do this workaround to fix this issue.
-
-There's a open bug in:
-https://bugzilla.freedesktop.org/show_bug.cgi?id=99516
-
-Upstream-Status: Pending
-
-Signed-off-by: Fabio Berton <fabio.berton@ossystems.com.br>
----
- src/libbsd-overlay.pc.in | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/libbsd-overlay.pc.in b/src/libbsd-overlay.pc.in
-index ac8bf89..65dc3ae 100644
---- a/src/libbsd-overlay.pc.in
-+++ b/src/libbsd-overlay.pc.in
-@@ -8,4 +8,4 @@ Description: Utility functions from BSD systems (overlay)
- Version: @VERSION@
- URL: https://libbsd.freedesktop.org/
- Libs: -L${libdir} -lbsd
--Cflags: -isystem ${includedir}/bsd -DLIBBSD_OVERLAY
-+Cflags: -I${includedir}/bsd -DLIBBSD_OVERLAY
--- 
-2.11.0
-

meta/recipes-support/libbsd/libbsd_0.9.1.bb

@@ -33,7 +33,6 @@ SECTION = "libs"
 
 SRC_URI = " \
     http://libbsd.freedesktop.org/releases/${BPN}-${PV}.tar.xz \
-    file://0001-src-libbsd-overlay.pc.in-Set-Cflags-to-use-I-instead.patch \
     file://0001-flopen-Add-missing-fcntl.h-include.patch \
 "