Drop Derby

[tadgh]

As of Derby 17, in order to support JDK17, the jars must be built from source, as the default package supports JDK21. Due to a high severity vulnerability in older versions, and a lack of appetite to host
a forked packaged version of Derby, the Derby JARs have been removed from the HAPI-FHIR distribution. For those who wish to continue to use Derby, you may still do so, but the following jars must be manually added
to your classpath:

• remove derby compiled jars
• inform customers of how to continue using derby