Martin von Zweigbergk <martinvonz@google.com> [Tue, 02 Dec 2014 16:39:59 -0800] rev 23472
update: remove redundant and misplaced merge tests
The "nothing to merge" case is covered by test-merge-default.t.
The "uncommitted changes" case is covered by test-merge1.t (and
others).
The "merge -f" case is covered by test-merge-force.t.