*knowledge_pad: fix some gadget instances properties types

These documents were probably edited before they had correct property
sheets, because they had local properties as incorrect type, as reported
by PropertyTypeValidity:

    <ERP5Type.ConsistencyMessage for PropertyTypeValidity type_check on portal_gadgets/erp5_persons (message: Attribute gadget_type should be of type lines but is of type <type 'str'>)>
    <ERP5Type.ConsistencyMessage for PropertyTypeValidity type_check on portal_gadgets/erp5_gadget_new_sale_opportunity (message: Attribute gadget_type should be of type lines but is of type <type 'str'>)>
    <ERP5Type.ConsistencyMessage for PropertyTypeValidity type_check on portal_gadgets/erp5_gadget_contact_person (message: Attribute gadget_type should be of type lines but is of type <type 'str'>)>

bt5/erp5_crm_knowledge_pad/PathTemplateItem/portal_gadgets/erp5_gadget_contact_person.xml

@@ -146,16 +146,6 @@
                       <value> <string>lines</string> </value>
                   </item>
                 </dictionary>
-                <dictionary>
-                  <item>
-                      <key> <string>id</string> </key>
-                      <value> <string>gadget_type</string> </value>
-                  </item>
-                  <item>
-                      <key> <string>type</string> </key>
-                      <value> <string>lines</string> </value>
-                  </item>
-                </dictionary>
                 <dictionary>
                   <item>
                       <key> <string>id</string> </key>
@@ -213,16 +203,6 @@
             <key> <string>edit_form_id</string> </key>
             <value> <string>ERP5Site_viewContactPersonListGadgetPreferenceDialog</string> </value>
         </item>
-        <item>
-            <key> <string>gadget_type</string> </key>
-            <value>
-              <tuple>
-                <string>erp5_front</string>
-                <string>web_section</string>
-                <string>web_front</string>
-              </tuple>
-            </value>
-        </item>
         <item>
             <key> <string>id</string> </key>
             <value> <string>erp5_gadget_contact_person</string> </value>

bt5/erp5_crm_knowledge_pad/PathTemplateItem/portal_gadgets/erp5_gadget_new_sale_opportunity.xml

@@ -146,16 +146,6 @@
                       <value> <string>lines</string> </value>
                   </item>
                 </dictionary>
-                <dictionary>
-                  <item>
-                      <key> <string>id</string> </key>
-                      <value> <string>gadget_type</string> </value>
-                  </item>
-                  <item>
-                      <key> <string>type</string> </key>
-                      <value> <string>lines</string> </value>
-                  </item>
-                </dictionary>
                 <dictionary>
                   <item>
                       <key> <string>id</string> </key>
@@ -213,16 +203,6 @@
             <key> <string>edit_form_id</string> </key>
             <value> <string>ERP5Site_viewNewSaleOpportunityGadgetPreferenceDialog</string> </value>
         </item>
-        <item>
-            <key> <string>gadget_type</string> </key>
-            <value>
-              <tuple>
-                <string>erp5_front</string>
-                <string>web_section</string>
-                <string>web_front</string>
-              </tuple>
-            </value>
-        </item>
         <item>
             <key> <string>id</string> </key>
             <value> <string>erp5_gadget_new_sale_opportunity</string> </value>

bt5/erp5_knowledge_pad/PathTemplateItem/portal_gadgets/erp5_persons.xml

@@ -162,16 +162,6 @@
                       <value> <string>lines</string> </value>
                   </item>
                 </dictionary>
-                <dictionary>
-                  <item>
-                      <key> <string>id</string> </key>
-                      <value> <string>gadget_type</string> </value>
-                  </item>
-                  <item>
-                      <key> <string>type</string> </key>
-                      <value> <string>lines</string> </value>
-                  </item>
-                </dictionary>
                 <dictionary>
                   <item>
                       <key> <string>id</string> </key>
@@ -229,16 +219,6 @@
             <key> <string>edit_form_id</string> </key>
             <value> <string>Base_viewBasicGadgetPreferenceDialog</string> </value>
         </item>
-        <item>
-            <key> <string>gadget_type</string> </key>
-            <value>
-              <tuple>
-                <string>erp5_front</string>
-                <string>web_section</string>
-                <string>web_front</string>
-              </tuple>
-            </value>
-        </item>
         <item>
             <key> <string>id</string> </key>
             <value> <string>erp5_persons</string> </value>