Bug 746792 - process payment in foreign currency leads to broken equation

[Frank H. Ellenberger]

Hi Geert,

in src/business/business-gnome/gtkbuilder/dialog-payment.glade you added
the commodity_label with
<property name="label" translatable="yes">(USD)</property>

AFAIK "(USD)" it is a placeholder which is later replaced by the locale
currency symbol, e.g. I get "(€)". So I think we can remove the
translatable flag. Any objections?

Frank