configs/qemu_nios2_10m50: delete config

Qemu 9.1.0 removed support for NIOS2 emulation, so we can't
no longer test it when updating Qemu zo 9.1.0.
Furthermore it seems that NIOS2 architecture will be soon
deprecated in the toolchain support.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

board/qemu/nios2-10m50/linux.fragment

@@ -1,3 +0,0 @@
-# Embed the DTB in the kernel image
-CONFIG_NIOS2_DTB_SOURCE_BOOL=y
-CONFIG_NIOS2_DTB_SOURCE="10m50_devboard.dts"

board/qemu/nios2-10m50/readme.txt

@@ -1,5 +0,0 @@
-Run the emulation with:
-
-  qemu-system-nios2 -kernel output/images/vmlinux -nographic # qemu_nios2_10m50_defconfig
-
-The login prompt will appear in the terminal that started Qemu.

configs/qemu_nios2_10m50_defconfig

@@ -1,15 +0,0 @@
-BR2_nios2=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_6=y
-BR2_GLOBAL_PATCH_DIR="board/qemu/patches"
-BR2_DOWNLOAD_FORCE_CHECK_HASHES=y
-BR2_ROOTFS_POST_IMAGE_SCRIPT="board/qemu/post-image.sh"
-BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_DEFCONFIG)"
-BR2_LINUX_KERNEL=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.6.32"
-BR2_LINUX_KERNEL_DEFCONFIG="10m50"
-BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/qemu/nios2-10m50/linux.fragment"
-BR2_TARGET_ROOTFS_INITRAMFS=y
-BR2_PACKAGE_HOST_QEMU=y
-BR2_PACKAGE_HOST_QEMU_SYSTEM_MODE=y
-BR2_PACKAGE_HOST_UBOOT_TOOLS=y