remove references to the mailing list

README

@@ -10,9 +10,6 @@ Rhythmbox is free software, licensed under the GNU GPL.
 The official web site is:
   https://wiki.gnome.org/Apps/Rhythmbox
 
-Information about mailing lists can be found at:
-  https://mail.gnome.org/mailman/listinfo/rhythmbox-devel
-
 Our IRC channel is #rhythmbox on GIMPnet (irc.gimp.org).
 
 Installation
@@ -28,7 +25,7 @@ Bugs should be reported to the GitLab repository.
 create an account for yourself.
 
 Please read the GNOME bug reporting guidelines, documented here:
-https://wiki.gnome.org/Community/GettingInTouch/Bugzilla/Guidelines
+https://wiki.gnome.org/Community/GettingInTouch/BugReportingGuidelines
 
 Development
 ===========

rhythmbox.doap

@@ -7,7 +7,6 @@
   <name xml:lang="en">rhythmbox</name>
   <shortdesc xml:lang="en">Music playback and management application</shortdesc>
   <homepage rdf:resource="https://wiki.gnome.org/Apps/Rhythmbox" />
-  <mailing-list rdf:resource="http://mail.gnome.org/mailman/listinfo/rhythmbox-devel" />
   <download-page rdf:resource="http://download.gnome.org/sources/rhythmbox/" />
   <bug-database rdf:resource="https://gitlab.gnome.org/GNOME/rhythmbox/issues/" />
   <programming-language>C</programming-language>