[gnome-apps-nightly] Remove migrated apps

[Mathieu Bridon <mbridon src gnome org>]

commit 3e7c4d250b7325fc6131f72e8511234c5a697743
Author: Mathieu Bridon <mathieu hashbang fr>
Date:   Wed Sep 25 14:35:06 2019 +0200

    Remove migrated apps
    
    We now build nightlies directly from the Gitlab CI, and they are pushed
    to a new repository:
    
    https://mail.gnome.org/archives/desktop-devel-list/2019-September/msg00028.html
    
    Not all apps were migrated though so we haven't decommissioned this
    repository yet.
    
    This commit removes those apps which have already been migrated to the
    new way of doing things, so that we don't continue building them here
    for nothing.

 epiphany.flatpakref          | 10 ----------
 gnome-builder.flatpakref     |  8 --------
 gnome-games.flatpakref       | 11 -----------
 gnome-todo.flatpakref        |  8 --------
 org.gnome.Boxes.app          |  3 ---
 org.gnome.Builder.app        |  3 ---
 org.gnome.Epiphany.Devel.app |  3 ---
 org.gnome.GamesDevel.app     |  3 ---
 org.gnome.Polari.app         |  3 ---
 org.gnome.Todo.app           |  3 ---
 org.gnome.clocks.app         |  3 ---
 polari.flatpakref            |  8 --------
 12 files changed, 66 deletions(-)