configs/toradex_apalis_imx6: remove defconfig, broken

This defconfig no longer builds:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/11026774072

It has been broken for at least 2 months:

  https://gitlab.com/buildroot.org/buildroot/-/jobs?name=T%3Dtoradex_apalis_imx6&kind=BUILD

It uses an outdated Linux 4.9 kernel, which no longer builds with
modern toolchains.

Unless a fix is provided, this defconfig will be removed.

Fixes:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/11026774072

Cc: Sergio Prado <sergio.prado@e-labworks.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>
(cherry picked from commit 1a3bae6424)
Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>

configs/toradex_apalis_imx6_defconfig

@@ -1,26 +0,0 @@
-BR2_arm=y
-BR2_cortex_a9=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_9=y
-BR2_GLOBAL_PATCH_DIR="board/toradex/apalis-imx6/patches"
-BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
-BR2_ROOTFS_POST_IMAGE_SCRIPT="board/toradex/apalis-imx6/post-image.sh"
-BR2_LINUX_KERNEL=y
-BR2_LINUX_KERNEL_CUSTOM_GIT=y
-BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://git.toradex.com/linux-toradex.git"
-BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="d899927728beca8357a5b4120b690cb3c1d80844"
-BR2_LINUX_KERNEL_DEFCONFIG="apalis_imx6"
-BR2_LINUX_KERNEL_DTS_SUPPORT=y
-BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6q-apalis-eval imx6q-apalis-ixora imx6q-apalis-ixora-v1.1"
-BR2_LINUX_KERNEL_INSTALL_TARGET=y
-BR2_TARGET_ROOTFS_EXT2=y
-BR2_TARGET_ROOTFS_EXT2_4=y
-BR2_TARGET_UBOOT=y
-BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
-BR2_TARGET_UBOOT_CUSTOM_GIT=y
-BR2_TARGET_UBOOT_CUSTOM_REPO_URL="git://git.toradex.com/u-boot-toradex.git"
-BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="30a1208727729dae22cb42f9ba9ba17efe5e6f77"
-BR2_TARGET_UBOOT_BOARD_DEFCONFIG="apalis_imx6"
-BR2_TARGET_UBOOT_FORMAT_IMG=y
-BR2_TARGET_UBOOT_SPL=y
-BR2_TARGET_UBOOT_SPL_NAME="SPL"
-BR2_PACKAGE_HOST_GENIMAGE=y