... build-vm-with-bootloader" for EFI systems
This reverts commit 20257280d9a3591a2888299a1aabfa850a0d0d08, reversing
changes made to 926a1b20949ddd66e3a4e1327cb1c1010ab10442.
It broke nixosTests.installer.simpleUefiSystemdBoot
and right now channel is lagging behing for two weeks.