Revert "pom.xml template: Add all imports as dependencies"
Revert "pom.xml template: Add all imports as dependencies"

This reverts commit 08edff577dbe2d0ccbe416febce1b5eb5d45fab2.

Reason: Dependency of all core modules (core, elements, filters) auto-
generated pom.xml on 'kurento-client' turned out to be necessary.

Extra Kurento modules (e.g. kms-chroma) have auto-generated Java code
that uses classes from the Kurento Java client, so this kind of module
should indeed depend on 'kurento-client' through the dependency
generated for the core modules.

And, to avoid having the same dependency listed 3 times in the pom.xml,
the pom template must exclude elements and filters.

Follows commits:
* Kurento/kms-core@c1eb0fa0160746ec6f949c43ce07b1b2acfab0b7
* Kurento/kms-elements@94e6ecd1188062fef15e3ee37eb6fe2384613707
* Kurento/kms-filters@66823e1b790a3decb06eaba2711707f6293ba34f

Kurento/kurento-module-creator,Kurento/kurento-module-creator