Update notes for submitted changes

* AMI: Remove docs for nonexistent AMI ContactStatus event headers

fb/2f242c49041e859caeb1fdc922d02612a6c315

@@ -0,0 +1,9 @@
+Code-Review+1: Benjamin Keith Ford <bford@digium.com>
+Code-Review+1: Joshua Colp <jcolp@digium.com>
+Code-Review+2: George Joseph <gjoseph@digium.com>
+Verified+2: Joshua Colp <jcolp@digium.com>
+Submitted-by: Joshua Colp <jcolp@digium.com>
+Submitted-at: Tue, 21 Aug 2018 08:07:35 -0500
+Reviewed-on: https://gerrit.asterisk.org/9977
+Project: asterisk
+Branch: refs/heads/16