[FIX] core: allow translated sized char fields

in the commit 763fbb1c of #101115
an assert is added for translated sized char fields

It is too strict for some legacy customized fields, we decide to remove it

closes odoo/odoo#116538

X-original-commit: 44f09e927d0f9338a42a3f121377db00cc70f714
Signed-off-by: Raphael Collet <rco@odoo.com>
Signed-off-by: Wang Chong (cwg) <cwg@odoo.com>

odoo/fields.py

@@ -1847,8 +1847,6 @@ class Char(_String):
         super()._setup_attrs(model_class, name)
         assert self.size is None or isinstance(self.size, int), \
             "Char field %s with non-integer size %r" % (self, self.size)
-        assert not(self.translate and self.size), \
-            "Translated field %s cannot have size %r" % (self, self.size)
 
     @property
     def column_type(self):