diff --git a/addons/hr_expense/hr_expense.py b/addons/hr_expense/hr_expense.py
index dea1f558b0f..ccb8af68e21 100644
--- a/addons/hr_expense/hr_expense.py
+++ b/addons/hr_expense/hr_expense.py
@@ -127,7 +127,6 @@ class hr_expense_expense(osv.osv):
         for expense in self.browse(cr, uid, ids):
             if expense.employee_id and expense.employee_id.parent_id.user_id:
                 self.message_subscribe_users(cr, uid, [expense.id], user_ids=[expense.employee_id.parent_id.user_id.id])
-        self.expense_approve_notificate(cr, uid, ids)
         self.write(cr, uid, ids, {
             'state':'confirm',
             'date_confirm': time.strftime('%Y-%m-%d')
@@ -135,7 +134,6 @@ class hr_expense_expense(osv.osv):
         return True
 
     def expense_accept(self, cr, uid, ids, *args):
-        self.expense_approved_notificate(cr, uid, ids)
         self.write(cr, uid, ids, {
             'state':'accepted',
             'date_valid':time.strftime('%Y-%m-%d'),
@@ -144,7 +142,6 @@ class hr_expense_expense(osv.osv):
         return True
 
     def expense_canceled(self, cr, uid, ids, *args):
-        self.expense_cancel_notificate(cr, uid, ids)
         self.write(cr, uid, ids, {'state':'cancelled'})
         return True
 
@@ -237,21 +234,6 @@ class hr_expense_expense(osv.osv):
         }
         return result
 
-    def expense_approve_notificate(self, cr, uid, ids, context=None):
-        for obj in self.browse(cr, uid, ids, context=context):
-            self.message_post(cr, uid, [obj.id],
-                _("Request <b>waiting for approved</b>"), subtype="hr_expense_expense.mt_expense_approve", context=context)
-
-    def expense_approved_notificate(self, cr, uid, ids, context=None):
-        for obj in self.browse(cr, uid, ids, context=context):
-            self.message_post(cr, uid, [obj.id],
-                _("Request <b>approved</b>"), subtype="hr_expense_expense.mt_expense_approved", context=context)
-
-    def expense_cancel_notificate(self, cr, uid, ids, context=None):
-        for obj in self.browse(cr, uid, ids, context=context):
-            self.message_post(cr, uid, [obj.id],
-                _("Request <b>cancelled</b>"), subtype="hr_expense_expense.mt_expense_refused", context=context)
-
 hr_expense_expense()
 
 class product_product(osv.osv):