layout.scss in sass-zero-1.0.23

- old
+ new

@@ -78,13 +78,9 @@
   }
 
   .u-show\@sm {
     display: block;
   }
-
-  .u-hide\@sm {
-    display: none;
-  }
 }
 
 @media print {
   .u-no-print {
     display: none !important;