Remove note about log4j warning from jaxws-* quickstarts

You will see the following errors and warnings in the server log. These messages come from the jaxws-tools-maven-plugin plugin that generates source files based on the WSDL. You can ignore these warnings.

[INFO] Could not find log4j.xml configuration, logging to console.
[INFO]
[INFO] TODO! Cheek SOAP 1.2 extension
[ERROR] log4j:WARN No appenders could be found for logger (org.apache.cxf.common.logging.LogUtils).
[ERROR] log4j:WARN Please initialize the log4j system properly.
[ERROR] log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.