dt-bindings: mfd: Revert "dt-bindings: mfd: maxim,max77693: Add USB connector"

This reverts commit da7ee30a.

Commit da7ee30a ("dt-bindings: mfd: maxim,max77693: Add USB
connector") was an earlier version of my patch adding the connector,
later superseded by commit 789c9ce9 ("dt-bindings: mfd:
maxim,max77693: Add USB connector").
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230905075558.21219-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Lee Jones <lee@kernel.org>

Documentation/devicetree/bindings/mfd/maxim,max77693.yaml

@@ -31,10 +31,6 @@ properties:
   charger:
     $ref: /schemas/power/supply/maxim,max77693.yaml
 
-  connector:
-    $ref: /schemas/connector/usb-connector.yaml#
-    unevaluatedProperties: false
-
   led:
     $ref: /schemas/leds/maxim,max77693.yaml