Enabled the capturing of WITHDRAW_REQ intent events in the intent-metrics

application.

Change-Id: Ic14066cdb0a4f3e5d03f52adb29e4ab32f569a40

@@ -143,11 +143,9 @@ public class IntentMetrics implements IntentMetricsService,
             case FAILED:
                 // TODO: Just ignore?
                 break;
-                /*
-            case WITHDRAW_REQUESTED:
+            case WITHDRAW_REQ:
                 intentWithdrawRequestedEventMetric.eventReceived();
                 break;
-                */
             case WITHDRAWN:
                 intentWithdrawnEventMetric.eventReceived();
                 break;

@@ -45,11 +45,9 @@ public interface IntentMetricsService {
     public EventMetric intentInstalledEventMetric();
 
     /**
-     * Gets the Event Metric for the intent WITHDRAW_REQUESTED events.
+     * Gets the Event Metric for the intent WITHDRAW_REQ events.
      *
-     * TODO: This intent event is not implemented yet.
-     *
-     * @return the Event Metric for the intent WITHDRAW_REQUESTED events.
+     * @return the Event Metric for the intent WITHDRAW_REQ events.
      */
     public EventMetric intentWithdrawRequestedEventMetric();