Revert "stage1 build: make target installing units can not remove the ACI dir"
Revert "stage1 build: make target installing units can not remove the ACI dir"

This reverts commit ca8e5f5930d1f413c67617e7d1f9500e312d5256.

lucasallan/rkt,rkt/rkt,Shashwatsh/rkt,rkt/rkt,ybubnov/rkt,coreos/rkt,lucasallan/rkt,lucasallan/rkt,Shashwatsh/rkt,ybubnov/rkt,lucasallan/rkt,joshix/rkt,kinvolk/rkt,ybubnov/rkt,alban/rkt,joshix/rkt,coreos/rkt,alban/rkt,joshix/rkt,Shashwatsh/rkt,kinvolk/rkt,coreos/rkt,joshix/rkt,rkt/rkt,alban/rkt,kinvolk/rkt,kinvolk/rkt,rkt/rkt