Revert "aurora wordmark placement (REVERT eventually) (bug 800521)"

This reverts commit 8bd29ac91c.

media/css/mkt/header.less

@@ -63,7 +63,7 @@
 .home {
     #site-header {
         h1 {
-            background: url(../../img/mkt/logos/mp_aurora_wordmark_200x30.png) no-repeat;
+            background: url(../../img/mkt/logos/mp_icon_wordmark_200x30.png) no-repeat;
             text-indent: -99999px;
             width: 200px;
             height: 30px;
@@ -276,7 +276,7 @@ body.login[data-page-type=notice] #site-header.no-consumer h1 {
     .home {
         #site-header {
             h1 {
-                background: url(../../img/mkt/logos/mp_aurora_wordmark_400x60.png) no-repeat;
+                background: url(../../img/mkt/logos/mp_icon_wordmark_400x60.png) no-repeat;
                 width: 400px;
                 height: 60px;
             }