glibmm: Upgrade to 2.56.0

* Remove the backported patch 0001-Glib-Threads-Private-Fix-gobj.patch

Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-core/glib-2.0/glibmm/0001-Glib-Threads-Private-Fix-gobj.patch

@@ -1,40 +0,0 @@
-From 838fe84c2ddcc9af51c34f751defbf3dd0ba8a06 Mon Sep 17 00:00:00 2001
-From: Kjell Ahlstedt <kjellahlstedt@gmail.com>
-Date: Wed, 20 Dec 2017 20:00:32 +0100
-Subject: [PATCH] Glib::Threads::Private: Fix gobj()
-
-Bug 791711
-
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
-Upstream-Status: Backport [https://github.com/GNOME/glibmm/commit/37d57ae9572b7d74aa385a30313eceae7f2d3fce]
- glib/glibmm/threads.h | 2 +-
- glib/src/threads.hg   | 2 +-
- 2 files changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/glib/glibmm/threads.h b/glib/glibmm/threads.h
-index f7e2b82a..2c0cbe8c 100644
---- a/glib/glibmm/threads.h
-+++ b/glib/glibmm/threads.h
-@@ -657,7 +657,7 @@ public:
-    */
-   inline void replace(T* data);
- 
--  GPrivate* gobj() { return gobject_; }
-+  GPrivate* gobj() { return &gobject_; }
- 
- private:
-   GPrivate gobject_;
-diff --git a/glib/src/threads.hg b/glib/src/threads.hg
-index 86d7a17b..c82a6130 100644
---- a/glib/src/threads.hg
-+++ b/glib/src/threads.hg
-@@ -628,7 +628,7 @@ public:
-    */
-   inline void replace(T* data);
- 
--  GPrivate* gobj() { return gobject_; }
-+  GPrivate* gobj() { return &gobject_; }
- 
- private:
-   GPrivate gobject_;

meta-oe/recipes-core/glib-2.0/glibmm_2.56.0.bb

@@ -13,10 +13,9 @@ SHRT_VER = "${@d.getVar('PV').split('.')[0]}.${@d.getVar('PV').split('.')[1]}"
 SRC_URI = " \
     ftp://ftp.gnome.org/pub/GNOME/sources/glibmm/${SHRT_VER}/glibmm-${PV}.tar.xz \
     file://remove-examples.patch \
-    file://0001-Glib-Threads-Private-Fix-gobj.patch \
 "
-SRC_URI[md5sum] = "dee5ebe309f5976c3dacfcf5c43a062b"
-SRC_URI[sha256sum] = "7cc28c732b04d70ed34f0c923543129083cfb90580ea4a2b4be5b38802bf6a4a"
+SRC_URI[md5sum] = "5aa7a60084fe3e01d746c96f4a115302"
+SRC_URI[sha256sum] = "6e74fcba0d245451c58fc8a196e9d103789bc510e1eee1a9b1e816c5209e79a9"
 
 do_install_append() {
     install -d ${D}${datadir}/glibmm-2.4