How to remove xmlns="http://www.ssp-uk.com/mqh/xsd/PanelSchemes" from xml using regex or anyother way

<Panel xmlns:xsd="http://www.w3.org/2001/XMLSchema"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.ssp-uk.com/mqh/xsd/PanelSchemes">
   <PanelSchemes>
      <PanelScheme>
         <Name>CoreMotor.ZUB0</Name>
      </PanelScheme>
      <PanelScheme>
         <Name>CoreMotor.ZUB1</Name>
      </PanelScheme>
      <PanelScheme>
         <Name>CoreMotor.ZUB2</Name>
      </PanelScheme>
      <PanelScheme>
         <Name>CoreMotor.ZUB3</Name>
      </PanelScheme>
      <PanelScheme>
         <Name>CoreMotor.ZUB4</Name>
      </PanelScheme>
      <PanelScheme>
         <Name>CoreMotor.ZUB5</Name>
      </PanelScheme>
      <PanelScheme>
         <Name>CoreMotor.V7</Name>
      </PanelScheme>
   </PanelSchemes>
</Panel>