Remove the Dynamic Placeholder from the legacy Odoo field. Introduce in 308f639e295fce07e4f34d6c76b35aab259e21ad And migrate to be OWL compatible in #101768 Therefore the old code targeting legacy odoo field is unnecessary and need to be cleaned. task-3071417 closes odoo/odoo#105920 Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>