diff --git a/docs/assets/css/bootstrap.css b/docs/assets/css/bootstrap.css
index 362ed3db40..00249ea19a 100644
--- a/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@ -360,10 +360,6 @@ a:hover {
   margin-left: 8.333333333333332%;
 }
 
-[class*="span"].hide {
-  display: none;
-}
-
 [class*="span"].pull-right {
   float: right;
 }
diff --git a/less/grid.less b/less/grid.less
index 15017b7cb5..2e7a61d91c 100644
--- a/less/grid.less
+++ b/less/grid.less
@@ -13,10 +13,6 @@
 #grid > .core(@grid-column-width, @grid-gutter-width, @grid-row-width);
 
 // Reset utility classes due to specificity
-[class*="span"].hide {
-  display: none;
-}
-
 [class*="span"].pull-right {
   float: right;
 }