Update doap email

Author: pervoj

Blurble.doap

@@ -14,8 +14,7 @@
   <maintainer>
     <foaf:Person>
       <foaf:name>Vojtěch Perník</foaf:name>
-      <foaf:mbox rdf:resource="mailto:[email protected]" />
-      <foaf:mbox rdf:resource="mailto:[email protected]" />
+      <foaf:mbox rdf:resource="mailto:[email protected]" />
       <foaf:account>
         <foaf:OnlineAccount>
           <foaf:accountServiceHomepage rdf:resource="https://gitlab.com" />