[gtk/wip/jimmac/declare-buttonfill-once] Adwaita: double declated $button_fill

[Jakub Steiner <jimmac src gnome org>]

commit 1f472104ad747178d3f7d04aa01b60ed1d89ecf5
Author: Jakub Steiner <jimmac gmail com>
Date:   Fri Nov 13 17:21:03 2020 +0100

    Adwaita: double declated $button_fill
    
    - this was already in place in _common, no need to have it in _colors

 gtk/theme/Adwaita/_colors.scss | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_colors.scss b/gtk/theme/Adwaita/_colors.scss
index b7c448c751..3eddb09ad5 100644
--- a/gtk/theme/Adwaita/_colors.scss
+++ b/gtk/theme/Adwaita/_colors.scss
@@ -1,9 +1,6 @@
 // When color definition differs for dark and light variant
 // it gets @if ed depending on $variant
 
-// !global vars no longer in sass
-$button_fill: null;
-
 $base_color: if($variant == 'light', #ffffff, lighten(desaturate(#241f31, 100%), 2%));
 $text_color: if($variant == 'light', black, white);
 $bg_color: if($variant == 'light', #f6f5f4, darken(desaturate(#3d3846, 100%), 4%));