[totem/wip/hadess/require-introspection] flatpak: Update for libpeas changes

[Bastien Nocera <hadess src gnome org>]

commit 9c62ded4f2ffbe852c1d6ca28779bbe9ecd5fd7c
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Aug 6 12:35:21 2019 +0200

    flatpak: Update for libpeas changes

 flatpak/org.gnome.Totem.json | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
---
diff --git a/flatpak/org.gnome.Totem.json b/flatpak/org.gnome.Totem.json
index bf4a2a43f..f4ffacb78 100644
--- a/flatpak/org.gnome.Totem.json
+++ b/flatpak/org.gnome.Totem.json
@@ -73,14 +73,11 @@
         },
         {
             "name": "libpeas",
+            "buildsystem": "meson",
             "sources": [
                 {
                     "type": "git",
                     "url": "https://gitlab.gnome.org/GNOME/libpeas.git";
-                },
-                {
-                    "type": "shell",
-                    "commands" : [ "sed 's,libpeas-gtk peas-demo,libpeas-gtk,' -i Makefile.am" ]
                 }
             ]
         },