Fix for alarm device panel not showing up, removing esc hook in alarm overlay

Change-Id: Idcf46c8782b88edfdec1560aca60d05d3d040aa1
diff --git a/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTopovOverlay.java b/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTopovOverlay.java
index 5094030..5f04dbe 100644
--- a/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTopovOverlay.java
+++ b/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTopovOverlay.java
@@ -33,7 +33,6 @@
     private static final String OVERLAY_ID = "alarmsTopo-overlay";
 
     private static final ButtonId ALARM1_BUTTON = new ButtonId("alarm1button");
-    private static final ButtonId ALARM2_BUTTON = new ButtonId("alarm2button");
 
     public AlarmTopovOverlay() {
         super(OVERLAY_ID);
@@ -58,8 +57,7 @@
         Map<Alarm.SeverityLevel, Long> countsForDevice = AlarmServiceUtil.lookUpAlarmCounts(deviceId);
         addAlarmCountsProperties(pp, countsForDevice);
 
-        pp.addButton(ALARM1_BUTTON)
-                .addButton(ALARM2_BUTTON);
+        pp.addButton(ALARM1_BUTTON);
 
         pp.removeButtons(CoreButtons.SHOW_PORT_VIEW)
                 .removeButtons(CoreButtons.SHOW_GROUP_VIEW)