Revert "Relational DB Service Sizings"

This reverts commit 22b2e192f7bd939a46e28305d65c92201296d8ef.
Enable ElephantSQL tests

After the upgrade to Spring Cloud 1.0.0.RELEASE, ElephantSQL tests
should run properly again.

[#72442878]
Merge 72442878-enable-elephantsql to master

[Completes #72442878]