[gnome-builder] css: remove dead code

[Christian Hergert <chergert src gnome org>]

commit cb406bd1f06ae2285995efe0b347462fa5f4e26d
Author: Christian Hergert <christian hergert me>
Date:   Sun Jun 21 17:05:47 2015 -0700

    css: remove dead code

 data/theme/shared.css |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/data/theme/shared.css b/data/theme/shared.css
index b0cafd6..53e2958 100644
--- a/data/theme/shared.css
+++ b/data/theme/shared.css
@@ -94,9 +94,6 @@ GbSourceStyleSchemeWidget GtkSourceView {
 GbSearchDisplayGroup GtkListBox .list-row {
   transition: none;
 }
-GbDocumentStack .button {
-  transition: none;
-}
 
 
 GbGreeterProjectRow,