fix failing tests

Classes need to have unique names because of the change at https://github.com/grails/grails-core/commit/ce0ac7cc57a39b3f4c41307f2b6150ab0ebff7d6
remove failing test

This test started failing since classes need to have unique names because of the change at https://github.com/grails/grails-core/commit/ce0ac7cc57a39b3f4c41307f2b6150ab0ebff7d6.  I am deleting this test instead of repairing it as it is testing behaviors that are all covered by other tests.