removed mindless_simple_set and mindless_retrying_set_get_and_delete from system_tests_common.py
removed mindless_simple_set and mindless_retrying_set_get_and_delete from system_tests_common.py

Incubaid/arakoon,openvstorage/arakoon,openvstorage/arakoon,openvstorage/arakoon,Incubaid/arakoon,Incubaid/arakoon