configs/bananapi_m2_plus: remove defconfig

This defconfig has been failing to build for several months, with
nobody stepping up to fix it. It's time to drop it.

See
https://lore.kernel.org/buildroot/20220806224338.0159e15c@windsurf/
for a notification on August 6, 2022 about the issues with this
defconfig.

Fixes:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/3234499005

Cc: Mike Harmony <mike.harmony@snapav.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

DEVELOPERS

@@ -2142,10 +2142,6 @@ F:	configs/licheepi_zero_defconfig
 N:	Mike Frampton <mikeframpo@gmail.com>
 F:	package/qcom-db410c-firmware/
 
-N:	Mike Harmony <mike.harmony@snapav.com>
-F:	board/sinovoip/m2-plus/
-F:	configs/bananapi_m2_plus_defconfig
-
 N:	Mikhail Boiko <mikhailboiko85@gmail.com>
 F:	package/libfribidi/
 

board/sinovoip/m2-plus/boot.cmd

@@ -1,7 +0,0 @@
-setenv bootargs console=ttyS0,115200 earlyprintk root=/dev/mmcblk0p2 rootwait
-
-mmc dev 0
-fatload mmc 0 $kernel_addr_r zImage
-fatload mmc 0 $fdt_addr_r sun8i-h3-bananapi-m2-plus.dtb
-
-bootz $kernel_addr_r - $fdt_addr_r

board/sinovoip/m2-plus/genimage.cfg

@@ -1,34 +0,0 @@
-image boot.vfat {
-	vfat {
-		files = {
-			"zImage",
-			"sun8i-h3-bananapi-m2-plus.dtb",
-			"boot.scr"
-		}
-	}
-
-	size = 64M
-}
-
-image sdcard.img {
-	hdimage {
-	}
-
-	partition u-boot {
-		in-partition-table = "no"
-		image = "u-boot-sunxi-with-spl.bin"
-		offset = 8K
-		size = 1016K # 1MB - 8KB
-	}
-
-	partition boot {
-		partition-type = 0xC
-		bootable = "true"
-		image = "boot.vfat"
-	}
-
-	partition rootfs {
-		partition-type = 0x83
-		image = "rootfs.ext4"
-	}
-}

configs/bananapi_m2_plus_defconfig

@@ -1,30 +0,0 @@
-BR2_arm=y
-BR2_cortex_a7=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_0=y
-BR2_TARGET_GENERIC_ISSUE="Welcome to Bananapi M2 Plus"
-BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
-BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/sinovoip/m2-plus/genimage.cfg"
-BR2_LINUX_KERNEL=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.0"
-BR2_LINUX_KERNEL_DEFCONFIG="sunxi"
-BR2_LINUX_KERNEL_DTS_SUPPORT=y
-BR2_LINUX_KERNEL_INTREE_DTS_NAME="sun8i-h3-bananapi-m2-plus"
-BR2_TARGET_ROOTFS_EXT2=y
-BR2_TARGET_ROOTFS_EXT2_4=y
-# BR2_TARGET_ROOTFS_TAR is not set
-BR2_TARGET_UBOOT=y
-BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
-BR2_TARGET_UBOOT_CUSTOM_VERSION=y
-BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2019.01"
-BR2_TARGET_UBOOT_BOARD_DEFCONFIG="Sinovoip_BPI_M2_Plus"
-BR2_TARGET_UBOOT_NEEDS_DTC=y
-BR2_TARGET_UBOOT_NEEDS_PYLIBFDT=y
-BR2_TARGET_UBOOT_FORMAT_CUSTOM=y
-BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME="u-boot-sunxi-with-spl.bin"
-BR2_PACKAGE_HOST_UBOOT_TOOLS=y
-BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT=y
-BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT_SOURCE="board/sinovoip/m2-plus/boot.cmd"
-BR2_PACKAGE_HOST_DOSFSTOOLS=y
-BR2_PACKAGE_HOST_GENIMAGE=y
-BR2_PACKAGE_HOST_MTOOLS=y