Pick up spotbugs-maven-plugin version from parent

Author: garydgregory

pom.xml

@@ -173,8 +173,6 @@
     <checkstyle.suppress.file>${basedir}/src/site/resources/checkstyle/checkstyle-suppressions.xml</checkstyle.suppress.file>
     <checkstyle.resourceExcludes>LICENSE.txt, NOTICE.txt, **/maven-archiver/pom.properties</checkstyle.resourceExcludes>
 
-    <commons.spotbugs.version>4.7.3.0</commons.spotbugs.version>
-    <commons.spotbugs.impl.version>4.7.3</commons.spotbugs.impl.version>
     <japicmp.skip>false</japicmp.skip>
 
     <commons.release.isDistModule>true</commons.release.isDistModule>