tests: removed redundant "-u test" from test scripts
The tests are executed with a .hgrc file which adds "-u test" by
default.
created new head
% local deleted a file, remote removed
abort: outstanding uncommitted changes
resolving manifests
removing a
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
% should show a as removed
R a
% manifest. should not have a:
b