Revert "chroot: for wheezy we forced systemd by default"
Revert "chroot: for wheezy we forced systemd by default"

The wheezy flasher still needs this

This reverts commit df96da384c7269a887accfc421faf7a6d63b24d2.

Signed-off-by: Robert Nelson <d6c41255011d14bfa93d8562b946ca186cfa0c7b@gmail.com>

miloh/image-builder,miloh/image-builder,BrianAdams/omap-image-builder,jadonk/image-builder,beagleboard/image-builder,robert-budde/omap-image-builder,robert-budde/omap-image-builder,beagleboard/image-builder,RobertCNelson/omap-image-builder,OpenROV-forks/omap-image-builder,OpenROV-forks/omap-image-builder,RobertCNelson/omap-image-builder,jadonk/image-builder,mhaberler/omap-image-builder,jlefley/omap-image-builder