arm64: dts: qcom: sm8450: remove duplicated glink-edge interrupt

Specifying interrupts and interrupts-extended is not correct.  Keep only
the extended ones, routed towards IPCC mailbox to fix warnings like:

  sm8450-qrd.dtb: glink-edge: More than one condition true in oneOf schema:
    {'$filename': 'Documentation/devicetree/bindings/remoteproc/qcom,glink-edge.yaml',
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220517070113.18023-13-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/sm8450.dtsi

@@ -2296,7 +2296,6 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
 							     IRQ_TYPE_EDGE_RISING>;
 				mboxes = <&ipcc IPCC_CLIENT_MPSS
 						IPCC_MPROC_SIGNAL_GLINK_QMP>;
-				interrupts = <GIC_SPI 449 IRQ_TYPE_EDGE_RISING>;
 				label = "modem";
 				qcom,remote-pid = <1>;
 			};