[gtk+] Use the .symbolic.png assets in Adwaita

[Matthias Clasen <matthiasc src gnome org>]

commit 4f0cf475a523253225adce94128112f764781a1c
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jan 10 17:13:51 2017 -0500

    Use the .symbolic.png assets in Adwaita
    
    Using an image() fallback from svg to png doesn't make too
    much sense, since the svg is always used (unless librsvg is
    not present), while the png icon is faster and cheaper to
    load and thus preferable.

 gtk/theme/Adwaita/_common.scss |   12 ++++--------
 1 files changed, 4 insertions(+), 8 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index c06fb5b..9690f76 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -2653,22 +2653,18 @@ radio {
 check {
   border-radius: 3px;
 
-  &:checked { -gtk-icon-source: image(-gtk-recolor(url("assets/check-symbolic.svg")),
-                                      -gtk-recolor(url("assets/check-symbolic.symbolic.png"))); }
+  &:checked { -gtk-icon-source: -gtk-recolor(url("assets/check-symbolic.symbolic.png")); }
 
-  &:indeterminate { -gtk-icon-source: image(-gtk-recolor(url("assets/dash-symbolic.svg")),
-                                            -gtk-recolor(url("assets/dash-symbolic.symbolic.png"))); }
+  &:indeterminate { -gtk-icon-source: -gtk-recolor(url("assets/dash-symbolic.symbolic.png")); }
 }
 
 %radio,
 radio {
   border-radius: 100%;
 
-  &:checked { -gtk-icon-source: image(-gtk-recolor(url("assets/bullet-symbolic.svg")),
-                                      -gtk-recolor(url("assets/bullet-symbolic.symbolic.png"))); }
+  &:checked { -gtk-icon-source: -gtk-recolor(url("assets/bullet-symbolic.symbolic.png")); }
 
-  &:indeterminate { -gtk-icon-source: image(-gtk-recolor(url("assets/dash-symbolic.svg")),
-                                            -gtk-recolor(url("assets/dash-symbolic.symbolic.png"))); }
+  &:indeterminate { -gtk-icon-source: -gtk-recolor(url("assets/dash-symbolic.symbolic.png")); }
 }
 
 // ANIMATION: