Odoo-Build/snippets/stock.report_picking.remove_serial_number.xml

<data inherit_id="stock.report_picking" priority="50">
    <xpath expr="//th[@t-if='has_serial_number']" position="replace">
  </xpath>
    <xpath expr="//td[@t-if='has_serial_number']" position="replace">
  </xpath>
</data>