erp5_hr_calendar: Move Mixin definitions to PortalTypeTypeMixin

   Use the proper way to include Mixin into a portal type

bt5/erp5_hr_calendar/PortalTypeTemplateItem/portal_types/Public%20Holiday%20Line.xml

@@ -56,14 +56,6 @@
               <tuple/>
             </value>
         </item>
-        <item>
-            <key> <string>type_mixin</string> </key>
-            <value>
-              <tuple>
-                <string>PeriodicityMixin</string>
-              </tuple>
-            </value>
-        </item>
       </dictionary>
     </pickle>
   </record>

bt5/erp5_hr_calendar/PortalTypeTemplateItem/portal_types/Time%20Table%20Line.xml

@@ -64,14 +64,6 @@
               <tuple/>
             </value>
         </item>
-        <item>
-            <key> <string>type_mixin</string> </key>
-            <value>
-              <tuple>
-                <string>PeriodicityMixin</string>
-              </tuple>
-            </value>
-        </item>
       </dictionary>
     </pickle>
   </record>

bt5/erp5_hr_calendar/PortalTypeTypeMixinTemplateItem/type_mixin.xml

+<type_mixin>
+ <portal_type id="Public Holiday Line">
+  <item>PeriodicityMixin</item>
+ </portal_type>
+ <portal_type id="Time Table Line">
+  <item>PeriodicityMixin</item>
+ </portal_type>
+</type_mixin>
\ No newline at end of file

bt5/erp5_hr_calendar/bt/template_portal_type_type_mixin_list

+Public Holiday Line | PeriodicityMixin
+Time Table Line | PeriodicityMixin
\ No newline at end of file