[REM] web: remove old changelog
[REM] web: remove old changelog

Was for 7.0, no longer needed in 13.0

closes odoo/odoo#32922

Signed-off-by: Martin Trigaux (mat) <cc7c5be316e48d137cbb549833b85d91034d799d@odoo.com>
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo