Revert "Clearfix on well-lists. Pages affected:"

Because it adds extra spaces at each project row on dashboard

This reverts commit 2767abd9.

app/assets/stylesheets/generic/lists.scss

@@ -13,12 +13,6 @@
     border-bottom: 1px solid #eee;
     border-bottom: 1px solid rgba(0, 0, 0, 0.05);
 
-    &:after {
-      content: " ";
-      display: table;
-      clear: both;
-    }
-
     &.disabled {
       color: #888;
     }