delete unstable tests
Merge branch 'Hibernate4' of github.com:bonitasoft/bonita-engine into Hibernate4

Conflicts:
	bpm/bonita-bpm-integration-tests/bonita-integration-local-tests/src/main/java/org/bonitasoft/engine/test/BPMLocalTest.java
Revert "Merge branch 'Hibernate4' of github.com:bonitasoft/bonita-engine into Hibernate4"

This reverts commit ceafa0c22f36444240fc72ab8130b9e3ae8ffd29, reversing
changes made to 6a2797376a7bb087ec2509125fa24d9ed387baa1.