[planner] Remove myself from maintainers

[Mart Raudsepp <mraudsepp src gnome org>]

commit e4890c83febf595cecc5c4a33dd538d213ef765d
Author: Alexandre Franke <afranke gnome org>
Date:   Thu Jun 3 15:44:05 2021 +0200

    Remove myself from maintainers

 planner.doap | 7 -------
 1 file changed, 7 deletions(-)
---
diff --git a/planner.doap b/planner.doap
index fb0f8fd4..b11f5771 100644
--- a/planner.doap
+++ b/planner.doap
@@ -19,11 +19,4 @@
       <gnome:userid>mraudsepp</gnome:userid>
     </foaf:Person>
   </maintainer>
-  <maintainer>
-    <foaf:Person>
-      <foaf:name>Alexandre Franke</foaf:name>
-      <foaf:mbox rdf:resource="mailto:alexandre franke gmail com" />
-      <gnome:userid>afranke</gnome:userid>
-    </foaf:Person>
-  </maintainer>
 </Project>