Remove agora from default IRC configuration

While testing/debugging #105 we found that agora disconnects our taker about 1 minute after joining the pit, just before starting the CJ. Only that IRC server seems to be affected.

jmclient/jmclient/configure.py

@@ -133,32 +133,35 @@ socks5_port = 9050
 #socks5 = true
 
 [MESSAGING:server2]
-host = agora.anarplex.net
+host = irc.darkscience.net
 channel = joinmarket-pit
-port = 14716
+port = 6697
 usessl = true
 socks5 = false
 socks5_host = localhost
 socks5_port = 9050
 
+#for tor
+#host = darksci3bfoka7tw.onion
+#socks5 = true
+
+#Agora currently seems to be unreliable. Not active by default for that reason.
+#[MESSAGING:server3]
+#host = agora.anarplex.net
+#channel = joinmarket-pit
+#port = 14716
+#usessl = true
+#socks5 = false
+#socks5_host = localhost
+#socks5_port = 9050
+
 #for tor
 #host = cfyfz6afpgfeirst.onion
 #port = 6667
 #usessl = false
 #socks5 = true
 
-[MESSAGING:server3]
-host = irc.darkscience.net
-channel = joinmarket-pit
-port = 6697
-usessl = true
-socks5 = false
-socks5_host = localhost
-socks5_port = 9050
 
-#for tor
-#host = darksci3bfoka7tw.onion
-#socks5 = true
 
 [LOGGING]
 # Set the log level for the output to the terminal/console
@@ -541,4 +544,4 @@ def is_segwit_mode():
 def is_native_segwit_mode():
     if not is_segwit_mode():
         return False
-    return jm_single().config.get('POLICY', 'native') != 'false'
+    return jm_single().config.get('POLICY', 'native') != 'false'