[FIX] project: remove subtype description for ratings

Before this commit:

For an example, when task is going to 'Done' state at that time mail is sent to
customer for feedback, answering of that mail contain smiley face plus subtype
description in chatter.

After this commit:

A subtype description is removed to the smiley face from message.

Links

PR https://github.com/odoo/odoo/pull/66137


Task-2373127

closes odoo/odoo#66137

Related: odoo/enterprise#16340
Related: odoo/upgrade#2157
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>