Remove deprecated file

comments/templates/comments/_comment_voting_summary.html

-<div class="voting-group d-inline-block {{class}}">
-  <label class="btn agree">Agree {{ comment.nr_A }}</label>
-  <label class="btn neutral">Not sure {{ comment.nr_N }}</label>
-  <label class="btn disagree">Disagree {{ comment.nr_D }}</label>
-</div>