[gnome-shell] theme: Remove two unneeded css classes

[Florian Müllner <fmuellner src gnome org>]

commit dcbc7236a002eb7aeee4a1c929e643e85a06ad4f
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Mon Feb 17 20:43:05 2020 +0100

    theme: Remove two unneeded css classes
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/1012

 data/theme/gnome-shell-sass/widgets/_dialogs.scss | 10 ----------
 1 file changed, 10 deletions(-)
---
diff --git a/data/theme/gnome-shell-sass/widgets/_dialogs.scss 
b/data/theme/gnome-shell-sass/widgets/_dialogs.scss
index 229c54af2f..5ad99f87e9 100644
--- a/data/theme/gnome-shell-sass/widgets/_dialogs.scss
+++ b/data/theme/gnome-shell-sass/widgets/_dialogs.scss
@@ -19,12 +19,7 @@
   }
 }
 
-.mount-dialog-subject {
-  @include fontsize($base_font_size + 3);
-}
-
 /* End Session Dialog */
-
 .end-session-dialog {
   width: 30em;
 
@@ -171,8 +166,3 @@
 .audio-selection-device-icon {
   icon-size: $base_icon_size * 4;
 }
-
-/* Access Dialog */
-.access-dialog {
-  spacing: 30px;
-}