[#6409] clean up some unused CSS
diff --git a/Allura/allura/nf/allura/css/site_style.css b/Allura/allura/nf/allura/css/site_style.css
index 205e693..081e046 100644
--- a/Allura/allura/nf/allura/css/site_style.css
+++ b/Allura/allura/nf/allura/css/site_style.css
@@ -552,30 +552,6 @@
   text-align: left;
 }
 
-.ads ins {
-  background-color: transparent;
-}
-
-.medrec {
-  width: 300px;
-  display: block;
-}
-
-.ads, .ad {
-  margin: 0 0 20px;
-}
-
-.leaderboard {
-  width: 728px;
-  overflow: hidden;
-  text-align: center;
-  margin: 0 auto;
-  line-height: 0;
-}
-.leaderboard .google_afc {
-  margin: 0 auto;
-}
-
 #site-notification {
   margin: 0 auto;
   margin-bottom: 20px;
@@ -629,11 +605,6 @@
   margin-left: 6px;
 }
 
-.hub {
-  width: 200px;
-  overflow: hidden;
-}
-
 /* message */
 #messages {
   position: absolute;