[gnome-music/wip/jfelder/baseview-must-die] playlistsview: Remove unneeded GtkBox

[Marinus Schraal <mschraal src gnome org>]

commit ce8c7ead728c2090b0a5e86b39e68d8c8230b2b7
Author: Marinus Schraal <mschraal gnome org>
Date:   Wed May 27 15:58:10 2020 +0200

    playlistsview: Remove unneeded GtkBox

 data/ui/PlaylistsView.ui          | 23 ++++++++---------------
 gnomemusic/views/playlistsview.py |  3 +--
 2 files changed, 9 insertions(+), 17 deletions(-)
---
diff --git a/data/ui/PlaylistsView.ui b/data/ui/PlaylistsView.ui
index 66afd2ca..4fffcc2d 100644
--- a/data/ui/PlaylistsView.ui
+++ b/data/ui/PlaylistsView.ui
@@ -4,26 +4,19 @@
   <template class="PlaylistsView" parent="GtkBox">
     <property name="visible">True</property>
     <child>
-      <object class="GtkBox" id="_main_container">
+      <object class="GtkScrolledWindow">
         <property name="visible">True</property>
+        <property name="width-request">220</property>
+        <style>
+          <class name="sidebar"/>
+        </style>
         <child>
-          <object class="GtkScrolledWindow" id="all_playlists">
+          <object class="GtkListBox" id="_sidebar">
+            <property name="selection-mode">single</property>
             <property name="visible">True</property>
-            <property name="width-request">220</property>
-            <style>
-              <class name="sidebar"/>
-            </style>
-            <child>
-              <object class="GtkListBox" id="_sidebar">
-                <property name="selection-mode">single</property>
-                <property name="visible">True</property>
-                <signal name="row-activated" handler="_on_playlist_activated" swapped="no"/>
-              </object>
-            </child>
+            <signal name="row-activated" handler="_on_playlist_activated" swapped="no"/>
           </object>
         </child>
-        <child>
-        </child>
       </object>
     </child>
   </template>
diff --git a/gnomemusic/views/playlistsview.py b/gnomemusic/views/playlistsview.py
index 5b8f0b1d..21247067 100644
--- a/gnomemusic/views/playlistsview.py
+++ b/gnomemusic/views/playlistsview.py
@@ -40,7 +40,6 @@ class PlaylistsView(Gtk.Box):
     title = GObject.Property(
         type=str, default=_("Playlists"), flags=GObject.ParamFlags.READABLE)
 
-    _main_container = Gtk.Template.Child()
     _sidebar = Gtk.Template.Child()
 
     def __init__(self, application):
@@ -60,7 +59,7 @@ class PlaylistsView(Gtk.Box):
         self._untouched_list = True
 
         self._playlist_widget = PlaylistsWidget(application, self)
-        self._main_container.add(self._playlist_widget)
+        self.add(self._playlist_widget)
 
         self._sidebar.bind_model(self._model, self._add_playlist_to_sidebar)