studio - removes the .is-fleeting class/animation that is handled by backbone's min/max time for notifications

cms/static/sass/assets/_anims.scss

@@ -92,37 +92,6 @@
 
 // ====================
 
-// notifications slide up then down
-@mixin notificationsSlideUpDown {
-  0%, 100% {
-    @include transform(translateY(0));
-  }
-
-  15%, 85% {
-    @include transform(translateY(-($notification-height)));
-  }
-
-  20%, 80% {
-    @include transform(translateY(-($notification-height*0.99)));
-  }
-}
-
-@-moz-keyframes notificationsSlideUpDown { @include notificationsSlideUpDown(); }
-@-webkit-keyframes notificationsSlideUpDown { @include notificationsSlideUpDown(); }
-@-o-keyframes notificationsSlideUpDown { @include notificationsSlideUpDown(); }
-@keyframes notificationsSlideUpDown { @include notificationsSlideUpDown();}
-
-@mixin anim-notificationsSlideUpDown($duration, $timing: ease-in-out, $count: 1, $delay: 0) {
-  @include animation-name(notificationsSlideUpDown);
-  @include animation-duration($duration);
-  @include animation-delay($delay);
-  @include animation-timing-function($timing);
-  @include animation-iteration-count($count);
-  @include animation-fill-mode(both);
-}
-
-// ====================
-
 // bounce in
 @mixin bounceIn {
   0% {

cms/static/sass/elements/_system-feedback.scss

@@ -669,10 +669,6 @@
     &.is-hiding {
       @include anim-notificationsSlideDown(0.25s);
     }
-
-    &.is-fleeting {
-      @include anim-notificationsSlideUpDown(2s);
-    }
   }
 }