Don't underline commit status icon

- Don't underline the commit status icon, as it isn't a link per-se.

Author: Gusted

web_src/less/_repository.less

@@ -3211,3 +3211,7 @@ td.blob-excerpt {
   transform: scale(105%);
   box-shadow: 0 .5rem 1rem var(--color-shadow) !important;
 }
+
+a.commit-statuses-trigger {
+  text-decoration: none;
+}