Remove preferred_subversion_working_directory. It has too much security risk.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4794 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/PropertySheet/SubversionPreference.py

@@ -32,11 +32,6 @@ class SubversionPreference:
   """
   
   _properties = (
-    { 'id'          : 'preferred_subversion_working_directory',
-      'description' : 'The working directory for Subversion',
-      'type'        : 'string',
-      'preference'  : 1,
-      'mode'        : 'w' },
     { 'id'          : 'preferred_subversion_user',
       'description' : 'The user name for Subversion',
       'type'        : 'string',