#1935 clean-up the footer follow a bit

Author: rjzupkoii

_includes/footer.html

@@ -1,16 +1,11 @@
 {% include base_path %}
 
+{% if site.author.github or site.author.bitbucke or site.atom_feed.hide != true %}
 <div class="page__footer-follow">
   <ul class="social-icons">
     {% if site.data.ui-text[site.locale].follow_label %}
       <li><strong>{{ site.data.ui-text[site.locale].follow_label }}</strong></li>
     {% endif %}
-    {% if site.twitter.username %}
-      <li><a href="https://twitter.com/{{ site.twitter.username }}"><i class="fab fa-twitter-square" aria-hidden="true"></i> Twitter</a></li>
-    {% endif %}
-    {% if site.facebook.username %}
-      <li><a href="https://facebook.com/{{ site.facebook.username }}"><i class="fab fa-facebook-square" aria-hidden="true"></i> Facebook</a></li>
-    {% endif %}
     {% if site.author.github %}
       <li><a href="http://github.com/{{ site.author.github }}"><i class="fab fa-github" aria-hidden="true"></i> GitHub</a></li>
     {% endif %}
@@ -22,5 +17,6 @@
     {% endif %}
   </ul>
 </div>
+{% endif %}
 
 <div class="page__footer-copyright">&copy; {{ site.time | date: '%Y' }} {{ site.name | default: site.title }}. {{ site.data.ui-text[site.locale].powered_by | default: "Powered by" }} <a href="http://jekyllrb.com" rel="nofollow">Jekyll</a> &amp; <a href="https://github.com/academicpages/academicpages.github.io">AcademicPages</a>, a fork of <a href="https://mademistakes.com/work/minimal-mistakes-jekyll-theme/" rel="nofollow">Minimal Mistakes</a>.</div>