This reverts commit cdfc94f4e965adf0eb2e29590b84be66f62b3199, reversing
changes made to 2051cd3e1ca6ca825fd650646b6718ee05cf3eda.
Conflicts:
initialize/config.go
system/etcd.go
system/etcd_test.go
system/fleet.go
system/fleet_test.go
system/update.go
system/update_test.go
test