Remove comment to align with BIO and NIO to aid future refactoring

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1519409 13f79535-47bb-0310-9956-ffa450edef68
Remove unnecessary call to recycle. recycle will be called by Ptoocol as part of releasing the connection.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1519411 13f79535-47bb-0310-9956-ffa450edef68
Use output methods to write PONG packet. Aligns APR/native with BIO and NIO to aid future refactoring.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1519413 13f79535-47bb-0310-9956-ffa450edef68
Refactoring. Pull up process method.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1519423 13f79535-47bb-0310-9956-ffa450edef68