Remove type dun for O2UK apn.

Bug:31003769
Change-Id: Iae673d4054b854b8d35e32fa3d7cef9c58dad4ed
diff --git a/apns-full-conf.xml b/apns-full-conf.xml
index ad4c461..b2543ee 100644
--- a/apns-full-conf.xml
+++ b/apns-full-conf.xml
@@ -3411,7 +3411,7 @@
       mmsc="http://mmsc.mms.o2.co.uk:8002"
       mmsproxy="82.132.254.1"
       mmsport="8080"
-      type="default, hipri, dun, supl, mms"
+      type="default, hipri, supl, mms"
   />
 
   <apn carrier="O2 Pay &amp; Go"