Merge #654: Remove "Share On" links

fa021b7 scripted-diff: Remove unused page attribute share (MarcoFalke)
fae1d8c Remove "Share On" links (MarcoFalke)

Pull request description:

  Google Plus has long been dead and removed from the internet and the Bitcoin Core project website is the wrong place to advertise or promote (not yet dead) social networks anyway.

ACKs for commit fa021b:

Tree-SHA512: 37f782b8a6a576920b7011d226304528b0b0942349f81d04645e81dad5fb2b3f513880b1de33c8443557de78cd24044a9bab6eba32c1f88f4e416cfbcc3ee527

Author: harding

CONTRIBUTING.md

@@ -81,14 +81,12 @@ defaults:
       type: releases
       layout: page
       lang: en
-      share: true
   - scope:
       path: ""
       type: doc
     values:
       layout: doc
       lang: en
-      share: true
   - scope:
       path: "_posts/en/posts"
       type: posts

_config.yml

@@ -80,10 +80,6 @@ <h3 class="toc-header">
           </ul>
         {% endif %}
       {% endif %}
-      {% if page.share != false %}
-        <hr />
-        {% include social-share.html %}
-      {% endif %}
     </div><!-- /.article-wrap -->
   </article>
 </div><!-- /#index -->

_includes/social-share.html

@@ -37,10 +37,6 @@ <h1>{{ page.title | xml_escape }}</h1>
     <div class="article-wrap">
       <!-- { % include istranslated.html % } -->
       {{ content }}
-      {% if page.share != false %}
-        <hr />
-        {% include social-share.html %}
-      {% endif %}
     </div><!-- /.article-wrap -->
   </article>
 </div><!-- /#index -->

_layouts/doc.html

@@ -52,7 +52,6 @@ <h1 class="p-name"><a href="{{ page.url }}" rel="bookmark" title="{{ page.title
       </div>
       <hr />
       <footer role="contentinfo">
-        {% if page.share != false %}{% include social-share.html %}{% endif %}
         <p class="byline">
           <strong>{{ page.title }}</strong>
           was published on