erp5_workflow: remove pre-defined workflow chain list in this template.

bt5/erp5_workflow/PortalTypeWorkflowChainTemplateItem/workflow_chain_type.xml

-<workflow_chain>
- <chain>
-  <type>Interaction</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>Interaction Workflow</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>PermissionRoles</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>State</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>Transition</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>Transition Variable</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>Variable</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>Workflow</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>Workflow Module</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>Workflow Script</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>Workflow Tool</type>
-  <workflow>default_workflow</workflow>
- </chain>
- <chain>
-  <type>Worklist</type>
-  <workflow>default_workflow</workflow>
- </chain>
-</workflow_chain>
\ No newline at end of file

bt5/erp5_workflow/bt/template_portal_type_workflow_chain_list

-Interaction Workflow | default_workflow
-Interaction | default_workflow
-PermissionRoles | default_workflow
-State | default_workflow
-Transition Variable | default_workflow
-Transition | default_workflow
-Variable | default_workflow
-Workflow Module | default_workflow
-Workflow Script | default_workflow
-Workflow Tool | default_workflow
-Workflow | default_workflow
-Worklist | default_workflow
\ No newline at end of file