Fixed javaDoc warnings and removed unnecessary package info

Change-Id: I916ae39d7766c2418f98b9b836b18e439056c0c1

@@ -30,6 +30,7 @@ public interface XosClientService {
     /**
      * Sets the XOS API access information to the client service.
      *
+     * @param xosAccess xos access information
      * @return true if it is set and authenticated, otherwise false
      */
     boolean setAccess(XosAccess xosAccess);

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * XOS API client application.
- */
-package org.onosproject.xosclient;
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