Update doap to reflect development apparently not being a thing now...

Author: kaiw

meld.doap

@@ -17,7 +17,6 @@
   <download-page rdf:resource="http://download.gnome.org/sources/meld/" />
   <bug-database rdf:resource="http://bugzilla.gnome.org/browse.cgi?product=meld" />
 
-  <category rdf:resource="http://api.gnome.org/doap-extensions#development" />
   <programming-language>Python</programming-language>
 
   <maintainer>