Removing gratuitous relativePath from pom.xmls

The default value for relativePath is: ../pom.xml

Change-Id: I1f5e5e6bfa1e91fcddae4f8cb8ab0c00c276e6b0
diff --git a/pom.xml b/pom.xml
index d78981d..468b5ae 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,6 @@
         <artifactId>onos-apps</artifactId>
         <groupId>org.onosproject</groupId>
         <version>1.7.0-SNAPSHOT</version>
-        <relativePath>../pom.xml</relativePath>
     </parent>
 
     <artifactId>onos-app-segmentrouting</artifactId>