Unit test fails due to cleanup

When building CLAMP, a test failure was noticed on the
LoopRepositoriesItCase test case. THe root cause was because the
LoopRepositoriesItCase did not clean up its test configuraiton. When the
test order randomly changed, this test was run before the
LoopRepositoriesItCase test case, causing that test case to fail due to
test data residue.

Issue-ID: CLAMP-946
Change-Id: I2c00bbca4ee9f9291ad2c2d565a519daee963c6d
Signed-off-by: liamfallon <liam.fallon@est.tech>