Remove redundant QA test for rejecting premature disputed escrow
Remove redundant QA test for rejecting premature disputed escrow

The whole purpose of this QA test was to test the rejection scenario for
disputed escrow funds which were attempted to be released before the
total expected dispute duration had expired. This is now protected in
unit tests within core/completion_test.go. (Added in e0ea931a)

gubatron/openbazaar-go,OpenBazaar/openbazaar-go,OpenBazaar/openbazaar-go,hoffmabc/openbazaar-go,gubatron/openbazaar-go,OpenBazaar/openbazaar-go,gubatron/openbazaar-go,hoffmabc/openbazaar-go,hoffmabc/openbazaar-go