[jhbuild] core: Switch back to gnome-system-monitor master

[Michael Catanzaro <mcatanzaro src gnome org>]

commit fd7295fabffa235b248f80ea1bffc3f17b3cf28d
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Mon Jul 31 12:19:16 2017 +0100

    core: Switch back to gnome-system-monitor master

 modulesets/gnome-suites-core-3.26.modules |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)
---
diff --git a/modulesets/gnome-suites-core-3.26.modules b/modulesets/gnome-suites-core-3.26.modules
index 053c461..35ce74e 100644
--- a/modulesets/gnome-suites-core-3.26.modules
+++ b/modulesets/gnome-suites-core-3.26.modules
@@ -1011,12 +1011,7 @@
   </meson>
 
   <autotools id="gnome-system-monitor">
-    <!-- FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=779812 -->
-    <branch repo="gnome.org"
-            version="3.22.2"
-            module="gnome-system-monitor/3.22/gnome-system-monitor-${version}.tar.xz"
-            checkoutdir="gnome-system-monitor-${version}"
-            hash="sha256:68a5b097157a6e445fc2467cbaecfede77d00b774c93e8aa69b6f784055dc982"/>
+    <branch />
     <dependencies>
       <dep package="intltool"/>
       <dep package="glib"/>