[tracker] NCO: Remove inverse function constraint from nco:imID

[Jürg Billeter <juergbi src gnome org>]

commit 13581a4863c1e9b6917208babd04c13d797de984
Author: Jürg Billeter <j bitron ch>
Date:   Thu Mar 18 14:03:15 2010 +0100

    NCO: Remove inverse function constraint from nco:imID
    
    IM addresses of different protocols can use the same IM ID.

 data/ontologies/32-nco.ontology |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/data/ontologies/32-nco.ontology b/data/ontologies/32-nco.ontology
index e3c4c36..3a404b5 100644
--- a/data/ontologies/32-nco.ontology
+++ b/data/ontologies/32-nco.ontology
@@ -378,7 +378,6 @@ nco:department a rdf:Property ;
 	tracker:weight 4 .
 
 nco:imID a rdf:Property ;
-	a nrl:InverseFunctionalProperty ;
 	rdfs:label "imID" ;
 	rdfs:comment "Identifier of the IM account. Examples of such identifier might include ICQ UINs, Jabber IDs, Skype names etc." ;
 	rdfs:subPropertyOf nao:identifier ;