arm64: dts: hikey960: Remove deprecated MMC properties

Remove deprecated MMC properties for hi3660
Signed-off-by: Ryan Grachek <ryan@edited.us>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts

@@ -583,7 +583,6 @@ &dwmmc2 { /* WIFI */
 	broken-cd;
 	/* WL_EN */
 	vmmc-supply = <&wlan_en>;
-	ti,non-removable;
 	non-removable;
 	cap-power-off-card;
 	keep-power-in-suspend;

arch/arm64/boot/dts/hisilicon/hi3660.dtsi

@@ -1009,7 +1009,6 @@ dwmmc1: dwmmc1@ff37f000 {
 			bus-width = <0x4>;
 			disable-wp;
 			cap-sd-highspeed;
-			supports-highspeed;
 			card-detect-delay = <200>;
 			reg = <0x0 0xff37f000 0x0 0x1000>;
 			interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
@@ -1030,12 +1029,6 @@ &sd_clk_cfg_func
 			sd-uhs-sdr50;
 			sd-uhs-sdr104;
 			status = "disabled";
-
-			slot@0 {
-				reg = <0x0>;
-				bus-width = <4>;
-				disable-wp;
-			};
 		};
 
 		/* SDIO */
@@ -1049,7 +1042,6 @@ dwmmc2: dwmmc2@ff3ff000 {
 			resets = <&crg_rst 0x94 20>;
 			reset-names = "reset";
 			card-detect-delay = <200>;
-			supports-highspeed;
 			keep-power-in-suspend;
 			pinctrl-names = "default";
 			pinctrl-0 = <&sdio_pmx_func