remove ubuntu servers

2.Common_services/2.NTP/ntp.conf

@@ -12,16 +12,6 @@ filegen peerstats file peerstats type day enable
 filegen clockstats file clockstats type day enable
 
 # Specify one or more NTP servers.
-
-# Use servers from the NTP Pool Project. Approved by Ubuntu Technical Board
-# on 2011-02-08 (LP: #104525). See http://www.pool.ntp.org/join.html for
-# more information.
-server 0.ubuntu.pool.ntp.org
-server 1.ubuntu.pool.ntp.org
-server 2.ubuntu.pool.ntp.org
-server 3.ubuntu.pool.ntp.org
-
-# Fallback server.
 server {{ NTP_SERVER }}
 
 # Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for
@@ -52,4 +42,4 @@ restrict ::1
 # If you want to listen to time broadcasts on your local subnet, de-comment the
 # next lines.  Please do this only if you trust everybody on the network!
 #disable auth
-#broadcastclient
\ No newline at end of file
+#broadcastclient