[gnome-builder/wip/gtk4-port] libide/gui: track css changes in libpanel

[Christian Hergert <chergert src gnome org>]

commit b13706c2f3c73b423669fc2e75a85a0f4e0560f0
Author: Christian Hergert <chergert redhat com>
Date:   Fri Apr 22 17:01:35 2022 -0700

    libide/gui: track css changes in libpanel

 src/libide/gui/style.css | 6 ------
 1 file changed, 6 deletions(-)
---
diff --git a/src/libide/gui/style.css b/src/libide/gui/style.css
index f146514c9..dfecc5105 100644
--- a/src/libide/gui/style.css
+++ b/src/libide/gui/style.css
@@ -60,9 +60,3 @@ notificationstack button {
   padding: 0;
   background: none;
 }
-
-/* Make new libadwaita match closer to libpanel frame header */
-tabboxchild {
- margin-top: 2px;
- margin-bottom: 2px;
-}