Merge pull request #2557 from xor-xor/missing-images

[CSS] Remove refs to images that don't exist anymore.

src/main/less/style.less

@@ -4,7 +4,6 @@
   font-size: 1.5em;
   font-weight: bold;
   text-decoration: none;
-  background: transparent url(../images/logo.png) no-repeat left center;
   padding: 20px 0 20px 40px;
 }
 
@@ -84,7 +83,6 @@
 width: 1500px;
 margin: auto;
 margin-top: 0;
-background-image: url('../images/shield.png');
 background-repeat: no-repeat;
 background-position: -40px -20px;
 margin-bottom: 210px;