Remove options that just aren't necessary with samba4

Ticket: #5346
(cherry picked from commit 50ecd63c19950498ac301a030fd51e0383dee7f4)

Conflicts:
	gui/sharing/models.py
Nuke the cifs inherit options from orbit

Ticket: #5346
(cherry picked from commit df04a730601e178716ab1f0ccfde6a88b82d3e03)