Drop the deprecated .visible-* classes (because we replaced them with .visible-*-block, -inline-block, -inline

less/responsive-utilities.less

@@ -23,15 +23,6 @@
 }
 
 
-// Visibility utilities
-// Note: Deprecated .visible-xs, .visible-sm, .visible-md, and .visible-lg as of v3.2.0
-.visible-xs,
-.visible-sm,
-.visible-md,
-.visible-lg {
-  .responsive-invisibility();
-}
-
 .visible-xs-block,
 .visible-xs-inline,
 .visible-xs-inline-block,
@@ -47,11 +38,6 @@
   display: none !important;
 }
 
-.visible-xs {
-  @media (max-width: @screen-xs-max) {
-    .responsive-visibility();
-  }
-}
 .visible-xs-block {
   @media (max-width: @screen-xs-max) {
     display: block !important;
@@ -68,11 +54,6 @@
   }
 }
 
-.visible-sm {
-  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
-    .responsive-visibility();
-  }
-}
 .visible-sm-block {
   @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
     display: block !important;
@@ -89,11 +70,6 @@
   }
 }
 
-.visible-md {
-  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
-    .responsive-visibility();
-  }
-}
 .visible-md-block {
   @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
     display: block !important;
@@ -110,11 +86,6 @@
   }
 }
 
-.visible-lg {
-  @media (min-width: @screen-lg-min) {
-    .responsive-visibility();
-  }
-}
 .visible-lg-block {
   @media (min-width: @screen-lg-min) {
     display: block !important;
@@ -131,11 +102,6 @@
   }
 }
 
-.hidden-xs {
-  @media (max-width: @screen-xs-max) {
-    .responsive-invisibility();
-  }
-}
 .hidden-sm {
   @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
     .responsive-invisibility();
@@ -157,14 +123,6 @@
 //
 // Media queries are placed on the inside to be mixin-friendly.
 
-// Note: Deprecated .visible-print as of v3.2.0
-.visible-print {
-  .responsive-invisibility();
-
-  @media print {
-    .responsive-visibility();
-  }
-}
 .visible-print-block {
   display: none !important;