[FIX] point_of_sale: remove reference to currencies for cash control

The mentioned available currencies are a leftover from the old
account.bank.statement.cashbox which would show a pre-defined list of
'currencies' (eg. .05, .10, .50, 1, 2, 5, 20, 50, ... for Euro). Since
accounting v9 this is no longer how it works, the wizard now just
consists of value, amount pairs that the user has to fill out.

opw-653111

addons/point_of_sale/i18n/point_of_sale.pot

@@ -4165,12 +4165,6 @@ msgstr ""
 msgid "Yellow Peppers"
 msgstr ""
 
-#. module: point_of_sale
-#: model:ir.ui.view,arch_db:point_of_sale.view_pos_session_form
-msgid "You can define another list of available currencies on the\n"
-"                                    <i>Cash Registers</i> tab of the"
-msgstr ""
-
 #. module: point_of_sale
 #: code:addons/point_of_sale/point_of_sale.py:771
 #, python-format
@@ -4388,11 +4382,6 @@ msgstr ""
 msgid "paid orders"
 msgstr ""
 
-#. module: point_of_sale
-#: model:ir.ui.view,arch_db:point_of_sale.view_pos_session_form
-msgid "payment method."
-msgstr ""
-
 #. module: point_of_sale
 #: model:ir.model,name:point_of_sale.model_pos_config
 msgid "pos.config"

addons/point_of_sale/point_of_sale_view.xml

@@ -854,14 +854,6 @@
                                     <label for="cash_register_balance_end" attrs="{'invisible' : [('state', '=', 'opening_control')]}" string="= Theoretical Closing Balance" class="oe_force_bold oe_opening_total"/>
                                     <field name="cash_register_balance_end" nolabel="1" attrs="{'invisible' : [('state', '=', 'opening_control')]}" class="oe_bold oe_pos_total" widget="monetary" options="{'currency_field': 'currency_id'}"/>
                                 </group>
-                                <div class="oe_clear"/>
-                                <div attrs="{'invisible' : ['|', ('cash_journal_id', '=', False), ('state', '!=', 'opening_control')]}" class="oe_view_nocontent" groups="point_of_sale.group_pos_manager">
-                                    <p class="oe_view_nocontent_create">
-                                    You can define another list of available currencies on the
-                                    <i>Cash Registers</i> tab of the <b><field name="cash_journal_id" class="oe_inline"/></b>
-                                    payment method.
-                                    </p>
-                                </div>
                             </div>
                             <div>
                                 <group class="oe_subtotal_footer oe_right" attrs="{'invisible': ['|', ('cash_control', '=', False), ('state', '=', 'opening_control')]}">