Purpose:
The "column choice" is a remainder of a previous implementation in which users
could decide how the survey would look like.
Since the re-design however, this option is no longer working as we prefer
handling this ourselves:
- To make the code simpler
- Because this is not really a "game-changer" feature
- Because we prefer to decide ourselves how the answers will look like to make
sure it always looks nice
As the field is not used anymore and some customers are wondering why it does
not work, we have decided to remove it.
Specifications:
Remove the field column_nb from the survey_question model
In the form, to make sure the "Answers" group is never empty,
we'll move the "Comments" options there instead
Task 2730409
closesodoo/odoo#83645
Related: odoo/upgrade#3231
Signed-off-by: Warnon Aurélien (awa) <awa@odoo.com>