diff --git a/account_financial_report_horizontal/report/common_report_header.py b/account_financial_report_horizontal/report/common_report_header.py
index 0e68f330..2fda3a7b 100644
--- a/account_financial_report_horizontal/report/common_report_header.py
+++ b/account_financial_report_horizontal/report/common_report_header.py
@@ -24,38 +24,6 @@ from tools.translate import _
 
 class common_report_header(object):
 
-    def _sum_debit(self, period_id=False, journal_id=False):
-        if journal_id and isinstance(journal_id, int):
-            journal_id = [journal_id]
-        if period_id and isinstance(period_id, int):
-            period_id = [period_id]
-        if not journal_id:
-            journal_id = self.journal_ids
-        if not period_id:
-            period_id = self.period_ids
-        if not (period_id and journal_id):
-            return 0.0
-        self.cr.execute('SELECT SUM(debit) FROM account_move_line l '
-                        'WHERE period_id IN %s AND journal_id IN %s ' + self.query_get_clause + ' ',
-                        (tuple(period_id), tuple(journal_id)))
-        return self.cr.fetchone()[0] or 0.0
-
-    def _sum_credit(self, period_id=False, journal_id=False):
-        if journal_id and isinstance(journal_id, int):
-            journal_id = [journal_id]
-        if period_id and isinstance(period_id, int):
-            period_id = [period_id]
-        if not journal_id:
-            journal_id = self.journal_ids
-        if not period_id:
-            period_id = self.period_ids
-        if not (period_id and journal_id):
-            return 0.0
-        self.cr.execute('SELECT SUM(credit) FROM account_move_line l '
-                        'WHERE period_id IN %s AND journal_id IN %s '+ self.query_get_clause+'',
-                        (tuple(period_id), tuple(journal_id)))
-        return self.cr.fetchone()[0] or 0.0
-
     def _get_start_date(self, data):
         if data.get('form', False) and data['form'].get('date_from', False):
             return data['form']['date_from']