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)
caijieming-baidu/scalaris,jvf/scalaris,jvf/scalaris,scalaris-team/scalaris,scalaris-team/scalaris,scalaris-team/scalaris,caijieming-baidu/scalaris,scalaris-team/scalaris,caijieming-baidu/scalaris,jvf/scalaris,jvf/scalaris,caijieming-baidu/scalaris,scalaris-team/scalaris,jvf/scalaris,jvf/scalaris,scalaris-team/scalaris,caijieming-baidu/scalaris,caijieming-baidu/scalaris,scalaris-team/scalaris,caijieming-baidu/scalaris,jvf/scalaris,scalaris-team/scalaris