v1.4; support still visible even if there are no units with it

[Lekensteyn]

How to produce:
Support a village.
Go to Platz -> Truppe.
Click on 'Einige', and press ">> OK <<".

Actual result:
The requested units are removed but the support is still visible (with 0 units).

Expected result:
The requested units and support is removed.

[agrafix]

~fixed