Increase timeout when removing active admin in CTS

Occasionally seeing timeouts when removing active admin in
testDelegatedCertInstaller. Might be a deadlock but changing the
timeout first just in case. Sleeping for 1 second at a time now
instead that 100ms, with a total timeout of 2min instead of 100secs

Bug: 22320787
Change-Id: I6a540c4c97414669eb69709472c5a2910f87ac7c
1 file changed