control: Drop more unnecessary package relationships

All these Depends and Recommends were only introduced in an
attempt to ensure that maintainer scripts would run in the
specific order that our custom conffile transfer logic
expected. Now that we're no longer relying on said custom
logic, we can get rid of them.

Notably, this will result in non-QEMU hypervisor drivers
no longer being installed by default when the daemon-system
package is installed, thus making it fulfill its intended
purpose much better.