erp5_core: Remove cookie __ac_google_hash if authentication with Google account is enabled

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_auto_logout/logout.py

@@ -11,4 +11,8 @@ REQUEST = portal.REQUEST
 if REQUEST.has_key('portal_skin'):
   portal.portal_skins.clearSkinCookie()
 REQUEST.RESPONSE.expireCookie('__ac', path='/')
+
+if getattr(portal.portal_skins, "erp5_oauth_google_login", None):
+  REQUEST.RESPONSE.expireCookie('__ac_google_hash', path='/')
+
 return REQUEST.RESPONSE.redirect(REQUEST.URL1 + '/logged_out')