ARM: dts: imx6ul-kontron: Remove unused devicetree

The board flavor with 4.3" display is not an actual product and was
never used. Remove it.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>

arch/arm/boot/dts/nxp/imx/imx6ul-kontron-bl-43.dts

-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2017 exceet electronics GmbH
- * Copyright (C) 2018 Kontron Electronics GmbH
- * Copyright (c) 2019 Krzysztof Kozlowski <krzk@kernel.org>
- */
-
-#include "imx6ul-kontron-bl.dts"
-
-/ {
-	model = "Kontron BL i.MX6UL 43 (N631X S 43)";
-	compatible = "kontron,bl-imx6ul-43", "kontron,bl-imx6ul",
-		     "kontron,sl-imx6ul", "fsl,imx6ul";
-
-	backlight {
-		compatible = "pwm-backlight";
-		pwms = <&pwm7 0 5000000 0>;
-		brightness-levels = <0 4 8 16 32 64 128 255>;
-		default-brightness-level = <6>;
-		status = "okay";
-	};
-};
-
-&i2c4 {
-	touchscreen@5d {
-		compatible = "goodix,gt928";
-		reg = <0x5d>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_cap_touch>;
-		interrupt-parent = <&gpio5>;
-		interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
-		reset-gpios = <&gpio5 8 GPIO_ACTIVE_HIGH>;
-		irq-gpios = <&gpio5 6 GPIO_ACTIVE_HIGH>;
-	};
-};
-
-&lcdif {
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_lcdif_dat &pinctrl_lcdif_ctrl>;
-	/* Leave status disabled because of missing display panel node */
-};
-
-&pwm7 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_pwm7>;
-	status = "okay";
-};
-
-&iomuxc {
-	pinctrl_cap_touch: captouchgrp {
-		fsl,pins = <
-			MX6UL_PAD_SNVS_TAMPER6__GPIO5_IO06	0x1b0b0 /* Touch Interrupt */
-			MX6UL_PAD_SNVS_TAMPER7__GPIO5_IO07	0x1b0b0 /* Touch Reset */
-			MX6UL_PAD_SNVS_TAMPER8__GPIO5_IO08	0x1b0b0 /* Touch Wake */
-		>;
-	};
-
-	pinctrl_lcdif_ctrl: lcdifctrlgrp {
-		fsl,pins = <
-			MX6UL_PAD_LCD_CLK__LCDIF_CLK		0x79
-			MX6UL_PAD_LCD_ENABLE__LCDIF_ENABLE	0x79
-			MX6UL_PAD_LCD_HSYNC__LCDIF_HSYNC	0x79
-			MX6UL_PAD_LCD_VSYNC__LCDIF_VSYNC	0x79
-			MX6UL_PAD_LCD_RESET__LCDIF_RESET	0x79
-		>;
-	};
-
-	pinctrl_lcdif_dat: lcdifdatgrp {
-		fsl,pins = <
-			MX6UL_PAD_LCD_DATA00__LCDIF_DATA00	0x79
-			MX6UL_PAD_LCD_DATA01__LCDIF_DATA01	0x79
-			MX6UL_PAD_LCD_DATA02__LCDIF_DATA02	0x79
-			MX6UL_PAD_LCD_DATA03__LCDIF_DATA03	0x79
-			MX6UL_PAD_LCD_DATA04__LCDIF_DATA04	0x79
-			MX6UL_PAD_LCD_DATA05__LCDIF_DATA05	0x79
-			MX6UL_PAD_LCD_DATA06__LCDIF_DATA06	0x79
-			MX6UL_PAD_LCD_DATA07__LCDIF_DATA07	0x79
-			MX6UL_PAD_LCD_DATA08__LCDIF_DATA08	0x79
-			MX6UL_PAD_LCD_DATA09__LCDIF_DATA09	0x79
-			MX6UL_PAD_LCD_DATA10__LCDIF_DATA10	0x79
-			MX6UL_PAD_LCD_DATA11__LCDIF_DATA11	0x79
-			MX6UL_PAD_LCD_DATA12__LCDIF_DATA12	0x79
-			MX6UL_PAD_LCD_DATA13__LCDIF_DATA13	0x79
-			MX6UL_PAD_LCD_DATA14__LCDIF_DATA14	0x79
-			MX6UL_PAD_LCD_DATA15__LCDIF_DATA15	0x79
-			MX6UL_PAD_LCD_DATA16__LCDIF_DATA16	0x79
-			MX6UL_PAD_LCD_DATA17__LCDIF_DATA17	0x79
-			MX6UL_PAD_LCD_DATA18__LCDIF_DATA18	0x79
-			MX6UL_PAD_LCD_DATA19__LCDIF_DATA19	0x79
-			MX6UL_PAD_LCD_DATA20__LCDIF_DATA20	0x79
-			MX6UL_PAD_LCD_DATA21__LCDIF_DATA21	0x79
-			MX6UL_PAD_LCD_DATA22__LCDIF_DATA22	0x79
-			MX6UL_PAD_LCD_DATA23__LCDIF_DATA23	0x79
-		>;
-	};
-
-	pinctrl_pwm7: pwm7grp {
-		fsl,pins = <
-			MX6UL_PAD_CSI_VSYNC__PWM7_OUT		0x110b0
-		>;
-	};
-};