Updating DefaultOvsdbClient

- Updating setControllerAuto to use setControllersWithUUID
  and cleaned up unnecessary conversions
- Removed commented out code in setControllersWithUUID
- Removed old setControllers method

Change-Id: I1ee89d5237e58b64e880d9a6db4cee16815dd9a8
diff --git a/ovsdb/api/src/main/java/org/onosproject/ovsdb/controller/OvsdbClientService.java b/ovsdb/api/src/main/java/org/onosproject/ovsdb/controller/OvsdbClientService.java
index 833f5fe..f2ff070 100644
--- a/ovsdb/api/src/main/java/org/onosproject/ovsdb/controller/OvsdbClientService.java
+++ b/ovsdb/api/src/main/java/org/onosproject/ovsdb/controller/OvsdbClientService.java
@@ -93,18 +93,24 @@
     Set<ControllerInfo> getControllers(DeviceId openflowDeviceId);
 
     /**
-     * sets the controllers of the node to the ones passed in the list.
+     * Sets the Controllers for the specified bridge.
+     * <p/>
+     * This method will replace the existing controller list with the new controller
+     * list.
      *
-     * @param bridgeUuid  UUid for the bridge we are settings the controls on
-     * @param controllers of controllers; empty if no controller is find
+     * @param bridgeUuid bridge uuid
+     * @param controllers list of controllers
      */
     void setControllersWithUUID(UUID bridgeUuid, List<ControllerInfo> controllers);
 
     /**
-     * sets the controllers of the node to the ones passed in the list.
+     * Sets the Controllers for the specified device.
+     * <p/>
+     * This method will replace the existing controller list with the new controller
+     * list.
      *
-     * @param deviceId  deviceId for the bridge we are settings the controls on
-     * @param controllers of controllers; empty if no controller is find
+     * @param deviceId device id (likely Openflow device)
+     * @param controllers list of controllers
      */
     void setControllersWithDeviceId(DeviceId deviceId, List<ControllerInfo> controllers);