tests: Avoid exception in dbus_p2p_two_groups

Only run peerJoined() steps once to avoid trying to use GetAll() on an
already removed group and double-removal of a group. This did not make
the test case fail, but the exception is printed out in pretty confusing
way to stdout, so better get rid of it.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
1 file changed