Drop: Thumbnails completely, as they'll be replaced

less/bootstrap.less

@@ -28,7 +28,6 @@
 @import "labels.less";
 @import "badges.less";
 @import "jumbotron.less";
-@import "thumbnails.less";
 @import "alerts.less";
 @import "progress-bars.less";
 @import "media.less";

less/scaffolding.less

@@ -86,8 +86,6 @@ img {
 }
 
 // Image thumbnails
-//
-// Heads up! This is mixin-ed into thumbnails.less for `.thumbnail`.
 .img-thumbnail {
   padding: @thumbnail-padding;
   line-height: @line-height-base;

less/thumbnails.less

@@ -1,36 +0,0 @@
-//
-// Thumbnails
-// --------------------------------------------------
-
-
-// Mixin and adjust the regular image class
-.thumbnail {
-  display: block;
-  padding: @thumbnail-padding;
-  margin-bottom: @line-height-computed;
-  line-height: @line-height-base;
-  background-color: @thumbnail-bg;
-  border: 1px solid @thumbnail-border;
-  border-radius: @thumbnail-border-radius;
-  transition: all .2s ease-in-out;
-
-  > img,
-  a > img {
-    &:extend(.img-responsive);
-    margin-left: auto;
-    margin-right: auto;
-  }
-
-  // Add a hover state for linked versions only
-  a&:hover,
-  a&:focus,
-  a&.active {
-    border-color: @link-color;
-  }
-
-  // Image captions
-  .caption {
-    padding: @thumbnail-caption-padding;
-    color: @thumbnail-caption-color;
-  }
-}