slapos_crm: update xml format

master/bt5/slapos_crm/ModuleTemplateItem/incident_response_module.xml

 <module>
+ <category_list>
+  <category>business_application/crm</category>
+ </category_list>
  <id>incident_response_module</id>
  <permission_list>
   <permission type='tuple'>

master/bt5/slapos_crm/PortalTypeTemplateItem/portal_types/Regularisation%20Request%20Module.xml

@@ -68,12 +68,6 @@
               <tuple/>
             </value>
         </item>
-        <item>
-            <key> <string>type_mixin</string> </key>
-            <value>
-              <tuple/>
-            </value>
-        </item>
       </dictionary>
     </pickle>
   </record>