remove unused owner.email

Author: MarcoFalke

_config.yml

@@ -27,7 +27,6 @@ owner:
   name: Bitcoin Core
   avatar: bio-photo.jpg
   bio: ""
-  email:
   twitter: bitcoincoreorg
   github: bitcoin
 

_layouts/feed.xml

@@ -8,7 +8,6 @@
     <author>
         <name>{{ site.owner.name }}</name>
         <uri>{{ site.url }}{{ post.url }}</uri>
-        {% if site.owner.email %}<email>{{ site.owner.email }}</email>{% endif %}
     </author>
     {% assign posts=site.posts | where:"lang", page.lang | where:"type", 'posts' %}
     {% for post in posts limit:20 %}