tests: remove vstart_wrapped_tests.sh

tests: remove vstart_wrapped_tests.sh

Listing tests to be run in a single script does not take advantage of
parallel runs in make.

The vstart_wrapper.sh script is reworked and made less specialized and
let the caller decide which daemons to run via CEPH_START and does not
enforce the number of deamons of each time. It no longer uses stop.sh to
avoid killing the osd/mon/mds that are unrelated to the tests.

http://tracker.ceph.com/issues/9815 Fixes: #9815

Signed-off-by: Loic Dachary <loic-201408@dachary.org>