*/form_render: update an outdated comment

There is no fallback on group id, if no group title, no legend is
displayed

bt5/erp5_km/SkinTemplateItem/portal_skins/erp5_km_theme/form_render.zpt

@@ -19,8 +19,7 @@ Breaks strict compatibility:
 
 It is possible to specify a group id and a group title by naming a group following the
   "group id (Group Title)" pattern. In this case the group id will be used as fieldset css
-  class and as tag id. The group title will be used as a legend for the fieldset. If no group
-  title is found, we use group id as title.
+  class and as tag id. The group title will be used as a legend for the fieldset.
 -->
   </tal:block>
 

bt5/erp5_mobile/SkinTemplateItem/portal_skins/erp5_mobile_ui/form_render.zpt

@@ -37,8 +37,7 @@ Breaks strict compatibility:
 
 It is possible to specify a group id and a group title by naming a group following the
   "group id (Group Title)" pattern. In this case the group id will be used as fieldset css
-  class and as tag id. The group title will be used as a legend for the fieldset. If no group
-  title is found, we use group id as title.
+  class and as tag id. The group title will be used as a legend for the fieldset.
 -->
 </tal:block>
 

bt5/erp5_mobile/SkinTemplateItem/portal_skins/erp5_mobile_ui/navigation_arrows.zpt

@@ -37,8 +37,7 @@ Breaks strict compatibility:
 
 It is possible to specify a group id and a group title by naming a group following the
   "group id (Group Title)" pattern. In this case the group id will be used as fieldset css
-  class and as tag id. The group title will be used as a legend for the fieldset. If no group
-  title is found, we use group id as title.
+  class and as tag id. The group title will be used as a legend for the fieldset.
 -->
 </tal:block>
 

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/form_render.zpt

@@ -19,8 +19,7 @@ Breaks strict compatibility:
 
 It is possible to specify a group id and a group title by naming a group following the
   "group id (Group Title)" pattern. In this case the group id will be used as fieldset css
-  class and as tag id. The group title will be used as a legend for the fieldset. If no group
-  title is found, we use group id as title.
+  class and as tag id. The group title will be used as a legend for the fieldset.
 -->
   </tal:block>