Hi
you can use this code to hide the "change password" code.

            <record id="view_users_form_simple_modif_hide_password" model="ir.ui.view">
                <field name="name">res.users.preferences.hide.password..form</field>
                <field name="model">res.users</field>
                <field name="inherit_id" ref="base.view_users_form_simple_modif"/>
                <field name="arch" type="xml">
                    <xpath expr="//button[@name='preference_change_password']" position="replace"/>
                </field>
            </record>

Regards,

Nikhilkrishnan

Charles, have you solved it? I'm in the same situation.

Thanks.

Gustavo