Revert "pom.xml template: set as child of "kurento-parent-pom""
Revert "pom.xml template: set as child of "kurento-parent-pom""

This reverts commit 05fc2c16c6428231f9556a333b2434b99b247cc8.

Reason: Depending on kurento-parent-pom creates a chicken-and-egg
problem for Kurento modules (kms-core, kms-elements, kms-filters)
because they would depend on kurento-parent-pom, but this parent
itself depends on the Java artifacts from kms-core, kms-elements,
and kms-filters! So both would need to exist before being able to
build any of them.

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