arm64: dts: imx8mm-venice-gw700x: fix invalid pmic pin config

The GW700x PMIC does not have an interrupt. Remove the invalid pin
config.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mm-venice-gw700x.dtsi

@@ -278,8 +278,6 @@ rtc@68 {
 
 	pmic@69 {
 		compatible = "mps,mp5416";
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_pmic>;
 		reg = <0x69>;
 
 		regulators {
@@ -444,12 +442,6 @@ MX8MM_IOMUXC_I2C2_SDA_I2C2_SDA		0x400001c3
 		>;
 	};
 
-	pinctrl_pmic: pmicgrp {
-		fsl,pins = <
-			MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3	0x41
-		>;
-	};
-
 	pinctrl_uart2: uart2grp {
 		fsl,pins = <
 			MX8MM_IOMUXC_UART2_RXD_UART2_DCE_RX	0x140