nixos/virtualbox: Revert disable hardening.
nixos/virtualbox: Revert disable hardening.

This reverts commit 5d67b17901ff2c9a18647bd9453c6b0d4294b875.

The issues have been resolved by ac603e208c98b260db675fa0c13be94fa95216f4.

Tested this with hostonlyifs and USB support with extension pack.

Conflicts:
	nixos/modules/programs/virtualbox-host.nix

Signed-off-by: aszlig <ee1aa092358634f9c53f01b5a783726c9e21b35a@redmoonstudios.org>
Tested-by: Mateusz Kowalczyk <eefa6dfc1eac2904477d70db04ec6889dd790721@fuuzetsu.co.uk>

NixOS/nixpkgs,triton/triton,NixOS/nixpkgs,triton/triton,NixOS/nixpkgs,triton/triton,SymbiFlow/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,triton/triton,NixOS/nixpkgs,SymbiFlow/nixpkgs,triton/triton,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,triton/triton,NixOS/nixpkgs,triton/triton,SymbiFlow/nixpkgs,triton/triton,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs