configs/pcengines_apu2: remove defconfig, broken

This defconfig no longer builds:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/11012274139

It is using the unmaintained, not even LTS 5.16 kernel, which no
longer builds with recent toolchains.

It has been broken for at least 2 months:

  https://gitlab.com/buildroot.org/buildroot/-/jobs?name=T%3Dpcengines_apu2&kind=BUILD

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

Fixes:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/11012274139

Cc: Danilo Bargen <mail@dbrgn.ch>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>

.checkpackageignore

@@ -174,7 +174,6 @@ configs/orangepi_pc2_defconfig lib_defconfig.ForceCheckHash
 configs/orangepi_zero_plus_defconfig lib_defconfig.ForceCheckHash
 configs/pc_x86_64_bios_defconfig lib_defconfig.ForceCheckHash
 configs/pc_x86_64_efi_defconfig lib_defconfig.ForceCheckHash
-configs/pcengines_apu2_defconfig lib_defconfig.ForceCheckHash
 configs/pine64_defconfig lib_defconfig.ForceCheckHash
 configs/pine64_pinecube_defconfig lib_defconfig.ForceCheckHash
 configs/pine64_sopine_defconfig lib_defconfig.ForceCheckHash

DEVELOPERS

@@ -776,8 +776,6 @@ N:	Daniel Sangue <daniel.sangue@sangue.ch>
 F:	package/libftdi1/
 
 N:	Danilo Bargen <mail@dbrgn.ch>
-F:	board/pcengines/apu2/
-F:	configs/pcengines_apu2_defconfig
 F:	package/tealdeer/
 
 N:	Danomi Manchego <danomimanchego123@gmail.com>

board/pcengines/apu2/isolinux.cfg

@@ -1,6 +0,0 @@
-serial 0 115200
-default 1
-label 1
-      kernel __KERNEL_PATH__
-      initrd __INITRD_PATH__
-      append root=/dev/sr0 console=ttyS0,115200n8

board/pcengines/apu2/linux.config

@@ -1,51 +0,0 @@
-CONFIG_SYSVIPC=y
-CONFIG_CGROUPS=y
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_SMP=y
-CONFIG_HYPERVISOR_GUEST=y
-CONFIG_PARAVIRT=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-# CONFIG_WIRELESS is not set
-CONFIG_DEVTMPFS=y
-CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_VIRTIO_BLK=y
-CONFIG_BLK_DEV_SD=y
-CONFIG_SCSI_VIRTIO=y
-CONFIG_ATA=y
-CONFIG_SATA_AHCI=y
-CONFIG_ATA_PIIX=y
-CONFIG_NETDEVICES=y
-CONFIG_VIRTIO_NET=y
-CONFIG_IGB=y
-CONFIG_NE2K_PCI=y
-CONFIG_8139CP=y
-# CONFIG_WLAN is not set
-CONFIG_INPUT_EVDEV=y
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_VIRTIO_CONSOLE=y
-CONFIG_HW_RANDOM_VIRTIO=m
-CONFIG_DRM=y
-CONFIG_SOUND=y
-CONFIG_SND=y
-# CONFIG_SND_PCI is not set
-CONFIG_USB=y
-CONFIG_USB_XHCI_HCD=y
-CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_UHCI_HCD=y
-CONFIG_USB_STORAGE=y
-CONFIG_VIRTIO_PCI=y
-CONFIG_VIRTIO_BALLOON=y
-CONFIG_VIRTIO_INPUT=y
-CONFIG_VIRTIO_MMIO=y
-CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
-CONFIG_EXT4_FS=y
-CONFIG_AUTOFS4_FS=y
-CONFIG_TMPFS=y
-CONFIG_TMPFS_POSIX_ACL=y
-CONFIG_UNWINDER_FRAME_POINTER=y

board/pcengines/apu2/readme.txt

@@ -1,40 +0,0 @@
-Intro
-=====
-
-This is a board configuration for the apu2 platform by PC Engines.
-
-https://pcengines.ch/apu2.htm
-
-Since the apu2 does not have any graphical output, the default configuration
-will ensure that the kernel output as well as the login prompt will be sent to
-the serial port.
-
-How to build
-============
-
-The provided defconfig creates a hybrid isolinux image that can be booted from
-either an USB stick or a CD.
-
-    $ make pcengines_apu2_defconfig
-    $ make
-
-How to write to an USB stick
-============================
-
-Once the build process is finished you will have an image
-called "rootfs.iso9660" in the output/images/ directory.
-
-Copy the bootable "rootfs.iso9660" onto the USB stick with "dd":
-
-    $ sudo dd if=output/images/rootfs.iso9660 of=/dev/sdX bs=1M conv=fsync
-    $ sudo sync
-
-How to connect to the apu2
-==========================
-
-Connect to the DB9 serial port of the apu2 board (either directly or through a
-USB adapter) with a baudrate of 115200.
-
-For example with miniterm (part of pyserial):
-
-    $ miniterm.py -f direct /dev/ttyUSB0 115200

configs/pcengines_apu2_defconfig

@@ -1,17 +0,0 @@
-BR2_x86_64=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_16=y
-BR2_TARGET_GENERIC_HOSTNAME="apu2"
-BR2_TARGET_GENERIC_GETTY_PORT="ttyS0"
-BR2_SYSTEM_DHCP="eth0"
-BR2_LINUX_KERNEL=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.16"
-BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
-BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/pcengines/apu2/linux.config"
-BR2_LINUX_KERNEL_NEEDS_HOST_LIBELF=y
-BR2_TARGET_ROOTFS_EXT2=y
-BR2_TARGET_ROOTFS_ISO9660=y
-BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="board/pcengines/apu2/isolinux.cfg"
-BR2_TARGET_ROOTFS_ISO9660_HYBRID=y
-# BR2_TARGET_ROOTFS_TAR is not set
-BR2_TARGET_SYSLINUX=y