This update removes an outdated internal translation helper from parts of the codebase. It helps keep the platform easier to maintain without changing day-to-day user workflows.

In this commit, _lt is definitly removed from codebase.

task-3292454

The WhatsApp module was updated to use a cleaner internal approach for handling date and time values. This reduces reliance on older formatting constants and helps keep the codebase easier to maintain without changing expected user behavior.

Enterprise counter-part.

https://github.com/odoo/odoo/pull/141320

This update removes unused testing support code from the Facebook social media module. It does not change customer-facing behavior, but helps keep the codebase simpler and easier to maintain.

https://github.com/odoo/odoo/pull/141025