Removed reference to codehaus jira

Author: krosenvold

ReleaseNotes.md

@@ -1,8 +1,6 @@
 Plexus Archiver and Plexus-IO combined release notes
 ========================================================================
 
-Note: Master is in JIRA at http://jira.codehaus.org/browse/PLXCOMP
-
 Since archiver depends on a given version of IO this list is cumulative,
 any version includes *all* changes below.
 
@@ -253,4 +251,4 @@ Plexus Components - Version plexus-archiver-2.4.4 (plexus-io 2.0.10)
 
 
 Older history in JIRA at http://jira.codehaus.org/browse/PLXCOMP
------
+-----