Remove support for spring-integration

[tdiesler]

Extends the Spring programming model to support the well-known Enterprise Integration Patterns. Spring Integration enables lightweight messaging within Spring-based applications and supports integration with external systems via declarative adapters. Those adapters provide a higher-level of abstraction over Spring’s support for remoting, messaging, and scheduling. Spring Integration’s primary goal is to provide a simple model for building enterprise integration solutions while maintaining the separation of concerns that is essential for producing maintainable, testable code.

https://spring.io/projects/spring-integration

Starting with Camel-3.4.0 we see incompatibility issues with WildFly-18

Support for a "build your own appserver" on top of another appserver should probably be removed.