Use centrally managed guava version specified in
oparent.  Includes upgrade to oparent 1.2.0.
This change was submitted by script and may include
additional whitespace or formatting changes.
Change-Id: I1ee8eda8e4e12cc731f6e37b9d076d9f92a3711f
Issue-ID: INT-619
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
     <parent>
         <groupId>org.onap.oparent</groupId>
         <artifactId>oparent</artifactId>
-        <version>1.1.0</version>
+        <version>1.2.0</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>23.0</version>
+
         </dependency>
 
         <dependency>
 
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>23.0</version>
+
         </dependency>
 
         <dependency>