Revert "WCM-1 Added bundle to BundleContextServlet"

This reverts commit 80810d523d98fac37cb07ba658be6995c672e45b.

We are taking a more elegant approach to achieve the same.
Make BundleServletContext implement BundleReference
Register all Servlets as OSGi services
Cleaned DeployerServlet:

* Uses BundleReference
* Waits for arquillian servlet registration
* Configuration parameters
Revert "Register all Servlets as OSGi services"

This reverts commit 71f21cbfaf475d4e4d0342ca8d8eb89ce4d99b14.
DeployerServlet using active polling