Update pom file for nexus changes (#3)

Co-authored-by: Dharmakeerthi Lasantha <tcdlpds@gmail.com>
Co-authored-by: Charitha Goonetilleke <charitha@entgra.io>
Reviewed-on: community/device-mgt-plugins#3
Co-authored-by: Lasantha Dharmakeerthi <lasantha@entgra.io>
Co-committed-by: Lasantha Dharmakeerthi <lasantha@entgra.io>

pom.xml

@@ -1459,7 +1459,6 @@
         </pluginRepository>
     </pluginRepositories>
 
-
     <repositories>
         <!-- Before adding ANYTHING in here, please start a discussion on the dev list.
              Ideally the Axis2 build should only use Maven central (which is available