[gnome-builder] build: update flatpak build to use newer flatpak/builder

[Christian Hergert <chergert src gnome org>]

commit 406db6c5164ec718dc61f60a1baf421c34884e57
Author: Christian Hergert <chergert redhat com>
Date:   Fri Apr 30 19:33:35 2021 -0700

    build: update flatpak build to use newer flatpak/builder

 build-aux/flatpak/org.gnome.Builder.json | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)
---
diff --git a/build-aux/flatpak/org.gnome.Builder.json b/build-aux/flatpak/org.gnome.Builder.json
index f8b6e508d..01d44683f 100644
--- a/build-aux/flatpak/org.gnome.Builder.json
+++ b/build-aux/flatpak/org.gnome.Builder.json
@@ -502,12 +502,7 @@
             "sources" : [
                 {
                     "type" : "git",
-                    "url" : "https://github.com/flatpak/flatpak.git";,
-                    "commit" : "23e1928a19c3e93296b83c10eeb19be288ccddee"
-                },
-                {
-                    "type" : "patch",
-                    "path" : "flatpak-Add-missing-check-for-USE_SYSTEM_HELPER.patch"
+                    "url" : "https://github.com/flatpak/flatpak.git";
                 }
             ]
         },
@@ -516,8 +511,7 @@
             "sources" : [
                 {
                     "type" : "git",
-                    "url" : "https://github.com/flatpak/flatpak-builder.git";,
-                    "branch" : "1.0.9"
+                    "url" : "https://github.com/flatpak/flatpak-builder.git";
                 }
             ]
         },