This CR deletes the old unit test which was using function pointers to
add indirection in favor of using proper interfaces and mocks.  The old
test coverage was at 85%, while the new ginkgo-ized test coverage brings
us to 100%.

Change-Id: I2e309d239a6eb8f831a3528a4bbe7e4eddec19c8
Signed-off-by: Jason Yellick <jyellick@us.ibm.com>