Revert "Fixing Jetty example and adding code to see it run"

Reverts astefanutti/camel-cdi#2

There are some changes that we can't accept. The web-jetty & web-tomcat have been added to add the WEB resources needed. They are used as overlay during WAR creation for the different examples. The code (CamelContext, SimpleCamelRoute & HelloBean) should stay within simplecamelcontext or defaultcamelcontext module as an example can be packaged as a JAR, BUNDLE or WAR and launched using one of the different ways : mvn exec:java, mvn camel:run, mvn -Pjetty war:inplace jetty:run, mvn -Ptomcat war:inplace tomcat7:run or mvn -Pwar wildfly:run.