It's weird that I cannot write a code in the answer.
Try following code for kanban:

<field name="expected_revenue" position="attributes">
<attribute name="widget"></attribute>
</field>
<field name="recurring_revenue" position="attributes">
<attribute name="widget"></attribute>
</field>

Try following code for list view:

<field name="expected_revenue" position="attributes">
<attribute name="widget"></attribute>
</field>

Thank you Sudhir I will try this. I do not see where in your code however that you are removing the widget. I would love an explanation of this haha.

Monetary widget adds a currency symbol before/after the amount if your object has a currency_id m2o field.

<odoo>
<record id="crm_lead_inherit" model="ir.ui.view">
<field name="name">crm.lead.inherit</field>
<field name="model">crm.lead</field>
<field name="inherit_id" ref="crm.crm_case_kanban_view_leads"/>
<field name="arch" type="xml">
<xpath expr="//field[@name='planned_revenue']" position="attributes">
<attribute name="widget"></attribute>
</xpath>
<xpath expr="//field[@name='planned_revenue']" position="attributes">
<attribute name="invisible">1</attribute>
</xpath>
</field>
</record>
</odoo>

Hi sudhir so I tried your suggestion. I am not seeing any changes at all.
any ideas?