Revert "PIM-2948: ParamConverter FTW"

This reverts commit bc02a2a2e4fcea5cffe84f9d9b9795805f18237c.

Conflicts:
	src/Pim/Bundle/EnrichBundle/Controller/AttributeOptionController.php
	src/Pim/Bundle/EnrichBundle/ParamConverter/ConfigurableParamConverter.php
PIM-2948: revert bc02a2a2e4fcea5cffe84f9d9b9795805f18237c