This commit cleans visitor's code:
* remove 'response' parameter that is not used anymore
in _handle_website_page_visit method.
* remove 'website_track_values' parameter that was not set anywhere anymore
in the _create_visitor method.
Task ID: 2205541
PR #46339
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>