Unnecessary registration of a CDI portable extension in Smallrye micro profile config

Smallrye micro profile is registering a ConfigExtension when it is already registered by Weld.

This portable extension is brought in by io.smallrye:smallrye-config dependency in its META-INF folder, and Weld automatically registers a CDI portable extension if it is found in the application classpath. That means it is unnecesary to register it again by wildfly config-smallrye.

It will allow also remove some unnecesary modules dependencies.