Skip sonar in common utils-test

sonar.tests didn't work, so just switching to sonar.skip, because
utils-test is not used in production code.

Issue-ID: POLICY-2650
Change-Id: I67bf9abda724944e080bbbf3a9bdc108dbd629c8
Signed-off-by: Jim Hahn <jrh3@att.com>
diff --git a/utils-test/pom.xml b/utils-test/pom.xml
index 8680005..b6560b5 100644
--- a/utils-test/pom.xml
+++ b/utils-test/pom.xml
@@ -35,7 +35,7 @@
         <powermock.version>2.0.4</powermock.version>
 
         <!-- this whole module is test code -->
-        <sonar.tests>src/main,src/test</sonar.tests>
+        <sonar.skip>true</sonar.skip>
     </properties>
 
     <dependencies>