diff --git a/product.py b/product.py
index 89a940276a..54a7d4e4c8 100644
--- a/product.py
+++ b/product.py
@@ -81,24 +81,9 @@ class Template(
 
     @classmethod
     def __register__(cls, module_name):
-        cursor = Transaction().connection.cursor()
-        sql_table = cls.__table__()
-
         super(Template, cls).__register__(module_name)
 
         table = cls.__table_handler__(module_name)
-        # Migration from 2.2: category is no more required
-        table.not_null_action('category', 'remove')
-
-        # Migration from 2.2: new types
-        cursor.execute(*sql_table.update(
-                columns=[sql_table.consumable],
-                values=[True],
-                where=sql_table.type == 'consumable'))
-        cursor.execute(*sql_table.update(
-                columns=[sql_table.type],
-                values=['goods'],
-                where=sql_table.type.in_(['stockable', 'consumable'])))
 
         # Migration from 3.8: rename category into categories
         if table.column_exist('category'):
diff --git a/uom.py b/uom.py
index f4a3b453e8..2bf289481c 100644
--- a/uom.py
+++ b/uom.py
@@ -2,7 +2,6 @@
 # this repository contains the full copyright notices and license terms.
 
 from decimal import Decimal
-from sql import Table
 from math import ceil, floor, log10
 
 from trytond.model import ModelView, ModelSQL, DeactivableMixin, fields, Check
@@ -54,18 +53,6 @@ class Uom(DeactivableMixin, ModelSQL, ModelView):
             ])
     digits = fields.Integer('Display Digits', required=True)
 
-    @classmethod
-    def __register__(cls, module_name):
-        cursor = Transaction().connection.cursor()
-        model_data = Table('ir_model_data')
-        # Migration from 1.6: corrected misspelling of ounce (was once)
-        cursor.execute(*model_data.update(
-                columns=[model_data.fs_id],
-                values=['uom_ounce'],
-                where=(model_data.fs_id == 'uom_once')
-                & (model_data.module == 'product')))
-        super(Uom, cls).__register__(module_name)
-
     @classmethod
     def __setup__(cls):
         super(Uom, cls).__setup__()