Clean up the changelog a bit.

debian/changelog

@@ -12,9 +12,7 @@ tails (1.5~rc1) UNRELEASED; urgency=medium
       · Don't use geo-specific search engine prefs in our browsers.
       · Hide Tools -> Set Up Sync, Tools -> Apps (that links to the Firefox
         Marketplace, and the "Share this page" button in the Tool bar.
-    - XXX: update list of Debian packages that were upgraded for security
-      reasons.
-    - Fix panic mode on MAC spoofing failure, bis repetita. (Closes: #9531)
+    - Fix panic mode on MAC spoofing failure. (Closes: #9531)
     - Deny Tor Browser access to global tmp directories with AppArmor,
       and give it its own $TMPDIR. (Closes: #9558)
     - Tails Installer: don't use a predictable file name for the subprocess