[IMP] point_of_sale: remove custom account_statement report model

There's no point to it, as we can easily do what we need directly in the
report.

addons/point_of_sale/report/__init__.py

@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-import account_statement
 import pos_invoice
 import pos_order_report
 import pos_receipt

addons/point_of_sale/report/account_statement.py

@@ -1,38 +0,0 @@
-# -*- coding: utf-8 -*-
-# Part of Odoo. See LICENSE file for full copyright and licensing details.
-
-import time
-from openerp.osv import osv
-from openerp.report import report_sxw
-
-
-class account_statement(report_sxw.rml_parse):
-
-    def __init__(self, cr, uid, name, context):
-        super(account_statement, self).__init__(cr, uid, name, context=context)
-        self.total = 0.0
-        self.localcontext.update({
-            'time': time,
-            'get_total': self._get_total,
-            'get_data': self._get_data,
-        })
-
-    def _get_data(self, statement):
-        lines = []
-        for line in statement.line_ids:
-            lines.append(line)
-
-        return lines
-
-    def _get_total(self, statement_line_ids):
-        total = 0.0
-        for line in statement_line_ids:
-            total += line.amount
-        return total
-
-
-class report_account_statement(osv.AbstractModel):
-    _name = 'report.point_of_sale.report_statement'
-    _inherit = 'report.abstract_report'
-    _template = 'point_of_sale.report_statement'
-    _wrapped_report_class = account_statement

addons/point_of_sale/views/report_statement.xml

@@ -32,10 +32,6 @@
                             <strong>Opening Date</strong>:<br/>
                             <span t-field="o.date"/>
                         </div>
-                        <!-- <div class="col-xs-3">
-                            <strong>Closing Date</strong>:<br/>
-                            <span t-field="o.closing_date"/>
-                        </div> -->
                         <div class="col-xs-3">
                             <strong>Starting Balance</strong>:<br/>
                             <span t-field="o.balance_start" t-field-options='{"widget": "monetary", "display_currency": "res_company.currency_id"}'/>
@@ -71,7 +67,7 @@
                             <table class="table table-condensed">
                                 <tr class="border-black">
                                     <td><strong>Total</strong></td>
-                                    <td class="text-right"><span t-esc="formatLang(get_total(o.line_ids), currency_obj=res_company.currency_id)"/></td>
+                                    <td class="text-right"><span t-esc="sum([line.amount for line in o.line_ids])" t-esc-options='{"widget": "monetary", "display_currency": "res_company.currency_id"}'/></td>
                                 </tr>
                             </table>
                         </div>