views: fix positioning of form hints.

Position <span class="hint"> elements to the right of normal <input>
elements and underneath <textarea> elements. Fixes form hints being
badly positioned on some pages.

app/javascript/src/styles/specific/uploads.scss

@@ -37,10 +37,6 @@ div#c-uploads {
       width: 100%;
     }
 
-    .hint {
-      display: block;
-    }
-
     div.field_with_errors {
       display: inline;
     }