diff --git a/base_comment_template/migrations/12.0.2.0.0/post-migrate.py b/base_comment_template/migrations/12.0.2.0.0/post-migrate.py
deleted file mode 100644
index e08ccabb..00000000
--- a/base_comment_template/migrations/12.0.2.0.0/post-migrate.py
+++ /dev/null
@@ -1,57 +0,0 @@
-from odoo import tools
-
-import logging
-_logger = logging.getLogger(__name__)
-
-
-def migrate(cr, version):
-
-    _logger.debug('Migrating res.partner comment_template_id')
-
-    if not tools.column_exists(cr, 'res_partner', 'comment_template_id'):
-        return
-
-    cr.execute("SELECT id FROM res_company")
-    company_ids = [d[0] for d in cr.fetchall()]
-
-    cr.execute(
-        "SELECT id FROM ir_model_fields WHERE model=%s AND name=%s",
-        ('res.partner', 'property_comment_template_id'))
-    [field_id] = cr.fetchone()
-
-    for company_id in company_ids:
-        cr.execute("""
-            INSERT INTO ir_property(
-                name,
-                type,
-                fields_id,
-                company_id,
-                res_id,
-                value_reference
-            )
-            SELECT
-                {field},
-                'many2one',
-                {field_id},
-                {company_id},
-                CONCAT('{model},',id),
-                CONCAT('{target_model},',{oldfield})
-            FROM {table} t
-            WHERE {oldfield} IS NOT NULL
-            AND (company_id IS NULL OR company_id = {company_id})
-            AND NOT EXISTS(
-                SELECT 1
-                FROM ir_property
-                WHERE fields_id={field_id}
-                AND company_id={company_id}
-                AND res_id=CONCAT('{model},',t.id)
-            )
-        """.format(
-            oldfield='comment_template_id',
-            field='property_comment_template_id',
-            field_id=field_id,
-            company_id=company_id,
-            model='res.partner',
-            target_model='base.comment.template',
-            table='res_partner',
-        ))
diff --git a/base_comment_template/migrations/12.0.3.0.0/post-migration.py b/base_comment_template/migrations/12.0.3.0.0/post-migration.py
deleted file mode 100644
index afb19530..00000000
--- a/base_comment_template/migrations/12.0.3.0.0/post-migration.py
+++ /dev/null
@@ -1,13 +0,0 @@
-# Copyright 2020 Tecnativa - Pedro M. Baeza
-# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
-from openupgradelib import openupgrade
-
-
-@openupgrade.migrate()
-def migrate(env, version):
-    table = 'res_partner'
-    old_column = 'property_comment_template_id'
-    new_column = openupgrade.get_legacy_name(old_column)
-    if openupgrade.column_exists(cr, table, new_column):
-        openupgrade.convert_to_company_dependent(
-            env, 'res.partner', old_column, new_column, 'res.partner')
diff --git a/base_comment_template/migrations/12.0.3.0.0/pre-migration.py b/base_comment_template/migrations/12.0.3.0.0/pre-migration.py
deleted file mode 100644
index 12b04d8c..00000000
--- a/base_comment_template/migrations/12.0.3.0.0/pre-migration.py
+++ /dev/null
@@ -1,13 +0,0 @@
-# Copyright 2020 Tecnativa - Pedro M. Baeza
-# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
-from openupgradelib import openupgrade
-
-
-@openupgrade.migrate()
-def migrate(env, version):
-    cr = env.cr
-    table = 'res_partner'
-    old_column = 'property_comment_template_id'
-    new_column = openupgrade.get_legacy_name(old_column)
-    if openupgrade.column_exists(cr, table, old_column):
-        openupgrade.rename_columns(cr, {table: [(old_column, new_column)]})