bug#26339: [PATCH] system: Remove circular dependency between (gnu system) and (gnu system grub).

[Danny Milosavljevic]

Pushed this one patch to master after a successful local test (also without .go 
files).

Let me know when it still doesn't work / we decide to, then I can revert all of 
them.  I know which they are...

But I think it's going to work now - and we are gonna need them regardless.