[gnome-builder/wip/gtk4-port] plugins/buildui: remove old style css

[Christian Hergert <chergert src gnome org>]

commit f4d6861e8483590fff3262bcf693232387de0fc6
Author: Christian Hergert <chergert redhat com>
Date:   Mon May 9 17:40:08 2022 -0700

    plugins/buildui: remove old style css

 src/plugins/buildui/buildui.gresource.xml | 1 -
 src/plugins/buildui/themes/shared.css     | 9 ---------
 2 files changed, 10 deletions(-)
---
diff --git a/src/plugins/buildui/buildui.gresource.xml b/src/plugins/buildui/buildui.gresource.xml
index 71dc36377..155bab913 100644
--- a/src/plugins/buildui/buildui.gresource.xml
+++ b/src/plugins/buildui/buildui.gresource.xml
@@ -8,6 +8,5 @@
     <file preprocess="xml-stripblanks">gbp-buildui-pane.ui</file>
     <file preprocess="xml-stripblanks">gbp-buildui-stage-row.ui</file>
     <file preprocess="xml-stripblanks">gtk/menus.ui</file>
-    <file>themes/shared.css</file>
   </gresource>
 </gresources>