[FIX] hr_payroll: display employee's identification number

The report "Payslip" was displaying both the employee's job, the second time
being in the "Identification No" box.
Remove the second job and replace by the field 'Identification No' which makes
more sense.

Closes #12937

addons/hr_payroll/views/report_payslip.xml

@@ -27,7 +27,7 @@
                             <td><strong>Email</strong></td>
                             <td><span t-field="o.employee_id.work_email"/></td>
                             <td><strong>Identification No</strong></td>
-                            <td><span t-field="o.employee_id.job_id"/></td>
+                            <td><span t-field="o.employee_id.identification_id"/></td>
                         </tr>
                         <tr>
                             <td><strong>Reference</strong></td>