Remove the alternate pool recovery test from test_data_scan. Newer
commits will place the test in its own file.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
Don't assume that test_data_scan will be run on exactly 2 MDS nodes.
Fixes: http://tracker.ceph.com/issues/19893
Signed-off-by: Douglas Fuller <dfuller@redhat.com>