MOTECH-997: Fix issue with incomplete logging in pax exam tests

This commit removes an outdated dependency on surefire-junit47. The bug
would lie with that dependency, it would hit an index out of bounds
Exception when printing stacktraces.

Change-Id: I78a82088c658261dc7358f4bb804962b80026825
Merge "MOTECH-997: Fix issue with incomplete logging in pax exam tests"