[eclipselink-dev] Rollback some migration tests running on server

[Kevin Yuan <kevin.yuan@xxxxxxxxxx>]

Some jpa test suites failed on setUp during running on application 
server if running all jpa testing together, but passed on one by one 
running test suite. Need more investigating for the following three test 
suites:
org.eclipse.persistence.testing.tests.jpa.advanced.JoinedAttributeAdvancedJunitTest
org.eclipse.persistence.testing.tests.jpa.advanced.ReportQueryMultipleReturnTestSuite
org.eclipse.persistence.testing.tests.jpa.advanced.ReportQueryAdvancedJUnitTest

Temp fix is rollback to before migration.
Code reviewed by Edwin Tang.

Regards,
Kevin