Button to remove NTP server

Change-Id: I58a3a894c192fafb551e07302b107bcd776e4901
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/app/configuration/controllers/date-time-controller.js b/app/configuration/controllers/date-time-controller.js
index 02752fe..5a1f8d2 100644
--- a/app/configuration/controllers/date-time-controller.js
+++ b/app/configuration/controllers/date-time-controller.js
@@ -133,6 +133,10 @@
         $scope.ntp.servers.push('');
       };
 
+      $scope.removeNTPField = function(index) {
+        $scope.ntp.servers.splice(index, 1);
+      };
+
       function setNTPServers() {
         // Remove any empty strings from the array. Important because we add an
         // empty string to the end so the user can add a new NTP server, if the