Remove dead comments.

Author: Gary Gregory

pom.xml

@@ -486,11 +486,6 @@ file comparators, endian transformation classes, and much more.
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-checkstyle-plugin</artifactId>
-<!--         <version>${checkstyle.plugin.version}</version> -->
-<!--         <configuration> -->
-<!--           <configLocation>${basedir}/checkstyle.xml</configLocation> -->
-<!--           <enableRulesSummary>false</enableRulesSummary> -->
-<!--         </configuration> -->
       </plugin>
       <plugin>
         <groupId>com.github.spotbugs</groupId>