Avoid metamodel automatic dependency

[ndr-brt]

Feature Request

Currently, the DefaultDependencyConvention injects the runtime-metamodel dependency automatically, but that's not really needed, because once it will be explicitly declared by the core-spi module, then it will be available pretty much for every module.

Which Areas Would Be Affected?

default dependency convention

Why Is the Feature Desired?

cleanup

Solution Proposal

If possible, provide a (brief!) solution proposal.