db_toke_SUITE: fix wrong use of unittest_helper:end_per_suite/1
db_toke_SUITE: fix wrong use of unittest_helper:end_per_suite/1

-> this must be the last call in end_per_suite/1!
 (it kills all processes not active when unittest_helper:init_per_suite/1 was called)
seyyed/scalaris,seyyed/scalaris,tectronics/scalaris,seyyed/scalaris,seyyed/scalaris,seyyed/scalaris,tectronics/scalaris,tectronics/scalaris,tectronics/scalaris,digshock/scalaris,digshock/scalaris,seyyed/scalaris,seyyed/scalaris,digshock/scalaris,tectronics/scalaris,digshock/scalaris,digshock/scalaris,tectronics/scalaris,digshock/scalaris,tectronics/scalaris,digshock/scalaris