Disable irc bot for buildbot.

Change-Id: I662253b6cbd42c770f1e71baa95816c1db690db6
diff --git a/configuration/buildbot/master.cfg b/configuration/buildbot/master.cfg
index 0e0d90a..ccd9026 100644
--- a/configuration/buildbot/master.cfg
+++ b/configuration/buildbot/master.cfg
@@ -118,17 +118,17 @@
 
 ######## IRC TARGETS
 
-from irc import ExtendedIRC
-irc = ExtendedIRC('irc.freenode.net', 'buildbot',
-    channels=['melange'],
-    allowForce=True,
-    notify_events={
-        'exception': 1,
-        'successToFailure': 1,
-        'failureToSuccess': 1,
-    }
-)
-c['status'].append(irc)
+# from irc import ExtendedIRC
+# irc = ExtendedIRC('irc.freenode.net', 'buildbot',
+#     channels=['melange'],
+#     allowForce=True,
+#     notify_events={
+#         'exception': 1,
+#         'successToFailure': 1,
+#         'failureToSuccess': 1,
+#     }
+# )
+# c['status'].append(irc)
 
 ####### PROJECT IDENTITY