Merge branch '2918-remove-btn-inverted-secondary-class-from-button-scss' into 'master'

Remove btn-inverted-secondary since it is not referenced anywhere

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/168188



Merged-by: Jose Ivan Vargas <jvargas@gitlab.com>
Approved-by: Jose Ivan Vargas <jvargas@gitlab.com>
Co-authored-by: James Rushford <jrushford@gitlab.com>

app/assets/stylesheets/framework/buttons.scss

@@ -175,12 +175,6 @@
   }
 }
 
-.btn-inverted {
-  &-secondary {
-    @include btn-outline($white, $blue-500, $blue-500, $blue-100, $blue-700, $blue-500, $blue-200, $blue-600, $blue-800);
-  }
-}
-
 .btn-blank {
   padding: 0;
   background: transparent;