qa/878: fix cleanup to remove qa's version of pipe.conf
qa/878: fix cleanup to remove qa's version of pipe.conf

Was triggering a failure of 1190 in CI, where the username is pcpqa
(not kenj), and so this tripped 1190 in a way I'd never seen outside
CI.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp