Revert "dt-bindings: arm: qcom: Document SDX65 platform and boards"

This reverts commit 3b338c9a.

This was a duplicate of 61339f36,
causing the sdx65 compatible and its board to be documented twice.
Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211223173339.GA3925@standask-GA-A55M-S2HP

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -48,7 +48,6 @@ description: |
         sdx65
         sm7225
         sm8150
-        sdx65
         sm8250
         sm8350
 
@@ -225,11 +224,6 @@ properties:
               - qcom,sdx65-mtp
           - const: qcom,sdx65
 
-      - items:
-          - enum:
-              - qcom,sdx65-mtp
-          - const: qcom,sdx65
-
       - items:
           - enum:
               - qcom,ipq6018-cp01