Removes broken image from people profiles

about/people/people.en.xml

@@ -400,7 +400,6 @@
     <team>kiel</team>
     <email>softmetz (at) fsfe (dot) org</email>
     <link>http://www.softmetz.de/</link>
-    <avatar>/fellowship/graphics/people/christiankalkhoff-avatar.jpg</avatar>
   </person>
 
   <person id="keijzer">
@@ -424,7 +423,6 @@
     <function group="bonn">coordinator/m</function>
     <team>bonn</team>
     <email>mkesper (at) fsfe (dot) org</email>
-    <avatar>/fellowship/graphics/people/michaelkesper-avatar.jpg</avatar>
   </person>
 
   <person id="kirschner">
@@ -844,7 +842,6 @@
     <team>berlin</team>
     <email>tomasz (at) fsfe (dot) org</email>
     <function group="berlin">coordinator/m</function>
-    <avatar>/fellowship/graphics/people/tomaszerolo-avatar.jpg</avatar>
   </person>
 
   <person id="verheesen">