Revert "Merge branch 'set_process_group'"
Revert "Merge branch 'set_process_group'"

This reverts commit a1320832eea5233dd68c8015ddc561e2187ebe70, reversing
changes made to 7ae0411145b93d8d0f5e2ff7fd030a11235d4a2a.

gstarnberger/paasta,somic/paasta,Yelp/paasta,Yelp/paasta,somic/paasta,gstarnberger/paasta