[gtk+] Adwaita: remove unused selector

[Cosimo Cecchi <cosimoc src gnome org>]

commit a9d07b6ec6d51452ed6e14567142240ac06a1e81
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Wed Dec 30 11:06:46 2015 -0800

    Adwaita: remove unused selector
    
    There's no header-bar-separator style class.

 gtk/theme/Adwaita/_common.scss           |    1 -
 gtk/theme/Adwaita/gtk-contained-dark.css |    6 ++----
 gtk/theme/Adwaita/gtk-contained.css      |    6 ++----
 3 files changed, 4 insertions(+), 9 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 99b6d69..bebead4 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -1129,7 +1129,6 @@ headerbar {
     @extend .dim-label;
   }
 
-  .header-bar-separator,
   & > GtkBox > separator.vertical {
     border-width: 0 1px;
     border-image: linear-gradient(to bottom,
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 19723ac..665af68 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -1629,13 +1629,11 @@ headerbar {
     font-size: smaller;
     padding-left: 12px;
     padding-right: 12px; }
-  .titlebar:not(headerbar) .header-bar-separator, .titlebar:not(headerbar) > GtkBox > separator.vertical,
-  headerbar .header-bar-separator,
+  .titlebar:not(headerbar) > GtkBox > separator.vertical,
   headerbar > GtkBox > separator.vertical {
     border-width: 0 1px;
     border-image: linear-gradient(to bottom, rgba(28, 31, 31, 0), #1c1f1f 30%, #1c1f1f 70%, rgba(28, 31, 31, 
0) 100%) 0 1/0 1px stretch; }
-    .titlebar:not(headerbar) .header-bar-separator:backdrop, .titlebar:not(headerbar) > GtkBox > 
separator.vertical:backdrop,
-    headerbar .header-bar-separator:backdrop,
+    .titlebar:not(headerbar) > GtkBox > separator.vertical:backdrop,
     headerbar > GtkBox > separator.vertical:backdrop {
       border-image: linear-gradient(to bottom, rgba(31, 34, 34, 0.5)) 0 1/1px 1px; }
   .selection-mode.titlebar:not(headerbar),
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 7798911..cf13814 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -1629,13 +1629,11 @@ headerbar {
     font-size: smaller;
     padding-left: 12px;
     padding-right: 12px; }
-  .titlebar:not(headerbar) .header-bar-separator, .titlebar:not(headerbar) > GtkBox > separator.vertical,
-  headerbar .header-bar-separator,
+  .titlebar:not(headerbar) > GtkBox > separator.vertical,
   headerbar > GtkBox > separator.vertical {
     border-width: 0 1px;
     border-image: linear-gradient(to bottom, rgba(157, 157, 153, 0), #9d9d99 30%, #9d9d99 70%, rgba(157, 
157, 153, 0) 100%) 0 1/0 1px stretch; }
-    .titlebar:not(headerbar) .header-bar-separator:backdrop, .titlebar:not(headerbar) > GtkBox > 
separator.vertical:backdrop,
-    headerbar .header-bar-separator:backdrop,
+    .titlebar:not(headerbar) > GtkBox > separator.vertical:backdrop,
     headerbar > GtkBox > separator.vertical:backdrop {
       border-image: linear-gradient(to bottom, rgba(165, 165, 161, 0.5)) 0 1/1px 1px; }
   .selection-mode.titlebar:not(headerbar),