Remove the JS route for locking an entity

I've tested content_lock with the trash module and everything works as expected now... no errors from either module.

I support that idea. Let's get rid of this and make the module better manitainable.

alexpott → credited idebr → .

Creditting @idebr for their work on 🐛 Content lock create access does not account for content translations Active

This also fixes 📌 Gin theme Unlock button missing when "Lock form using JS" is enabled Active

Automatically closed - issue fixed for 2 weeks with no activity.