iperf2: upgrade 2.0.13 -> 2.2.1

Release notes:
https://sourceforge.net/p/iperf2/code/ci/2-2-1/tree/NEWS.md

Drop the stdbool patch. It seems to have been fixed upstream by:
   ae0284e4   2020-10-22   Replace DAST_CHECK_BOOL with AC_HEADER_STDBOOL

Signed-off-by: Randy MacLeod <Randy.MacLeod@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-benchmark/iperf2/iperf2/0001-Detect-bool-definition-considering-stdbool.h-being-p.patch

@@ -1,60 +0,0 @@
-From 6df092a4153c6c37cfaddcabf2cd25a910a7f6e1 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Mon, 2 Sep 2019 15:40:52 -0700
-Subject: [PATCH] Detect bool definition considering stdbool.h being present
-
-This helps in defining the value correctly on different platforms e.g.
-clang/libc++ depends on the definition coming from stdbool.h
-current builds fail to compile therefore
-
-TMPDIR/work/cortexa7t2hf-neon-vfpv4-yoe-linux-gnueabi/iperf2/2.0.13-r0/recipe-sysroot/usr/include/c++/v1/type_traits:742:29: error: redefinition of '__libcpp_is_integral<int>'
-template <>          struct __libcpp_is_integral<int>                : public true_type {};
-                            ^~~~~~~~~~~~~~~~~~~~~~~~~
-
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
-Upstream-Status: Pending
-
- m4/dast.m4 | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
-
---- a/m4/dast.m4
-+++ b/m4/dast.m4
-@@ -11,7 +11,12 @@ AH_TEMPLATE([false])
- 
- AC_DEFUN(DAST_CHECK_BOOL, [
- 
--AC_CHECK_SIZEOF(bool)
-+if test "$ac_cv_header_stdbool_h" = yes; then
-+  AC_CHECK_SIZEOF(bool,,[#include <stdbool.h>])
-+else
-+  AC_CHECK_SIZEOF(bool)
-+fi
-+
- if test "$ac_cv_sizeof_bool" = 0 ; then
-   AC_DEFINE(bool, int)
- fi
---- a/configure.ac
-+++ b/configure.ac
-@@ -113,7 +113,7 @@ AC_SEARCH_LIBS([socket], [socket], [],
- 
- dnl Checks for header files.
- AC_HEADER_STDC
--AC_CHECK_HEADERS([arpa/inet.h libintl.h net/ethernet.h net/if.h linux/ip.h linux/udp.h linux/if_packet.h linux/filter.h netdb.h netinet/in.h stdlib.h string.h strings.h sys/socket.h sys/time.h syslog.h unistd.h signal.h ifaddrs.h])
-+AC_CHECK_HEADERS([arpa/inet.h libintl.h net/ethernet.h net/if.h linux/ip.h linux/udp.h linux/if_packet.h linux/filter.h netdb.h netinet/in.h stdbool.h stdlib.h string.h strings.h sys/socket.h sys/time.h syslog.h unistd.h signal.h ifaddrs.h])
- 
- dnl ===================================================================
- dnl Checks for typedefs, structures
---- a/include/util.h
-+++ b/include/util.h
-@@ -56,7 +56,9 @@
- #ifdef HAVE_CONFIG_H
-     #include "config.h"
- #endif
--
-+#ifdef HAVE_STDBOOL_H
-+# include <stdbool.h>
-+#endif
- #ifdef __cplusplus
- extern "C" {
- #endif

meta-oe/recipes-benchmark/iperf2/iperf2_2.2.1.bb

@@ -5,10 +5,9 @@ LICENSE = "BSD-2-Clause"
 LIC_FILES_CHKSUM = "file://COPYING;md5=e136a7b2560d80bcbf0d9b3e1356ecff"
 
 SRC_URI = "${SOURCEFORGE_MIRROR}/${BPN}/iperf-${PV}.tar.gz \
-           file://0001-Detect-bool-definition-considering-stdbool.h-being-p.patch \
 "
 
-SRC_URI[sha256sum] = "c88adec966096a81136dda91b4bd19c27aae06df4d45a7f547a8e50d723778ad"
+SRC_URI[sha256sum] = "754ab0a7e28033dbea81308ef424bc7df4d6e2fe31b60cc536b61b51fefbd8fb"
 
 S = "${WORKDIR}/iperf-${PV}"