This patch discard the fields to delete from data structures like field
triggers, field inverses, and fields to compute.
This is quite useful when uninstalling modules. This commit fixes the
uninstallation of modules base_setup, bus, mail, web_tour.
closesodoo/odoo#98668
X-original-commit: 49398a769b2ec4965bf148f10b5e13d0a6c1acff
Signed-off-by: Raphael Collet <rco@odoo.com>