<thead>
  <tr class="table-header">
    <th width="15%">Name</th>
    <th>Summary</th>
    <th>Description</th>
    <th width="20%">Details</th>
    <th width="10%">Duration</th>
    <th width="20%">Related</th>
  </tr>
</thead>

<thead>
  <tr class="table-header">
    <th width="15%">Name</th>
    <th>Summary</th>
    <th>Description</th>
    <th width="20%">Details</th>
    <th width="10%">Duration</th>
  </tr>
</thead>

Remove 'related' header for topical events
Remove 'related' header for topical events

There was a header for this field, but no content. Therefore removing
the header as it was redundant.
