Disable original sale report.

gistfile1.xml

        <record model="ir.action.report" id="sale.report_sale">
          <field name="active" eval="False"/>
        </record>
        <record model="ir.action.report" id="report_sale_new">
          <field name="name">Sale</field>
          <field name="report_name">sale.sale</field>
          <field name="model">sale.sale</field>
          <field name="report">laspilitas/sale.odt</field>
          <field name="style">company/header_A4.odt</field>
        </record>
        <record model="ir.action.keyword" id="report_sale_keyword_new">
            <field name="keyword">form_print</field>
            <field name="model">sale.sale,-1</field>
            <field name="action" ref="report_sale_new"/>
        </record>