removed closed down Google+ Service (jekyll#361)

Author: coliff

_includes/social.html

@@ -14,6 +14,5 @@
   {%- if social.youtube_channel -%}<li><a href="https://www.youtube.com/channel/{{ social.youtube_channel | cgi_escape | escape }}" title="{{ social.youtube_channel_name | escape | default: 'YouTube' }}"><svg class="svg-icon grey"><use xlink:href="{{ '/assets/minima-social-icons.svg#youtube' | relative_url }}"></use></svg></a></li>{%- endif -%}
   {%- if social.telegram -%}<li><a href="https://t.me/{{ social.telegram | cgi_escape | escape }}" title="{{ social.telegram | escape }}"><svg class="svg-icon grey"><use xlink:href="{{ '/assets/minima-social-icons.svg#telegram' | relative_url }}"></use></svg></a></li>{%- endif -%}
   {%- if social.microdotblog -%}<li><a rel="me" href="https://micro.blog/{{ social.microdotblog | cgi_escape | escape }}" title="{{ social.microdotblog | escape }}"><svg class="svg-icon grey"><use xlink:href="{{ '/assets/minima-social-icons.svg#microdotblog' | relative_url }}"></use></svg></a></li>{%- endif -%}
-  {%- if social.googleplus -%}<li><a href="https://plus.google.com/{{ social.googleplus | escape }}" title="{{ social.googleplus | escape }}"><svg class="svg-icon grey"><use xlink:href="{{ '/assets/minima-social-icons.svg#googleplus' | relative_url }}"></use></svg></a></li>{%- endif -%}
   {%- if social.rss -%}<li><a href="{{ 'feed.xml' | relative_url }}" title="{{ social.rss | escape }}"><svg class="svg-icon grey"><use xlink:href="{{ '/assets/minima-social-icons.svg#rss' | relative_url }}"></use></svg></a></li>{%- endif -%}
 </ul>