removed mention of sunxacml

pdp-testutils/pom.xml

@@ -138,7 +138,6 @@
             </executions>
          </plugin>
          <plugin>
-            <!-- Override license-maven-plugin configuration to exclude Sunxacml files from adding GPL license headers (different license) -->
             <groupId>com.mycila</groupId>
             <artifactId>license-maven-plugin</artifactId>
             <configuration>