[gnome-shell-sass] panel: Use dedicated Spinner class

[Florian Müllner <fmuellner src gnome org>]

commit c58d4fb5eba42a9e2bbc5cc914456bee5048d2ff
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Jul 22 16:46:40 2019 +0200

    panel: Use dedicated Spinner class
    
    The startup/busy indication in the app menu was left out of commit
    22e21ad7d1 because it doesn't use a hard-coded image, but as the
    image in the CSS is actually the same used by the spinner class,
    drop the "custom" styling and use the regular spinner.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/636

 _common.scss | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/_common.scss b/_common.scss
index ea912ff..4e64691 100644
--- a/_common.scss
+++ b/_common.scss
@@ -1171,7 +1171,6 @@ StScrollBar {
   // a little unstructured mess:
 
   #appMenu {
-    spinner-image: url("resource:///org/gnome/shell/theme/process-working.svg");
     spacing: 4px;
 
     .label-shadow { color: transparent; }