dt-bindings: usb: fusb302: remove max-sink-* properties

Remove max-sink-* properties since they are deprecated.
Reviewed-by: NRob Herring <robh@kernel.org>
Reviewed-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NLi Jun <jun.li@nxp.com>
Reviewed-by: NGuenter Roeck <linux@roeck-us.net>
Acked-by: NHeikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/devicetree/bindings/usb/fcs,fusb302.txt

@@ -6,12 +6,6 @@ Required properties :
 - interrupts             : Interrupt specifier
 
 Optional properties :
-- fcs,max-sink-microvolt : Maximum voltage to negotiate when configured as sink
-- fcs,max-sink-microamp  : Maximum current to negotiate when configured as sink
-- fcs,max-sink-microwatt : Maximum power to negotiate when configured as sink
-			   If this is less then max-sink-microvolt *
-			   max-sink-microamp then the configured current will
-			   be clamped.
 - fcs,operating-sink-microwatt :
 			   Minimum amount of power accepted from a sink
 			   when negotiating