Temporarily commented out buggy clirr plugin.

Relevant issues:
+ mojohaus/clirr-maven-plugin#3 (fixed in 2.7)
+ mojohaus/clirr-maven-plugin#7

jetty-websocket/pom.xml

@@ -32,10 +32,11 @@
                     <onlyAnalyze>org.eclipse.jetty.websocket.*</onlyAnalyze>
                 </configuration>
             </plugin>
+<!--
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>clirr-maven-plugin</artifactId>
-                <version>2.5</version>
+                <version>2.7</version>
                 <executions>
                     <execution>
                         <id>compare-api</id>
@@ -50,6 +51,7 @@
                     <comparisonVersion>9.1.0.v20131115</comparisonVersion>
                 </configuration>
             </plugin>
+-->
         </plugins>
     </build>
 </project>