configs/beelink_gs1: remove defconfig, broken

This defconfig no longer builds:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/11012273071

It has been broken for at least 2 months:

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

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

Cc: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>

board/beelink/gs1/extlinux.conf

@@ -1,4 +0,0 @@
-label linux
-  kernel /Image
-  devicetree /sun50i-h6-beelink-gs1.dtb
-  append console=ttyS0,115200 earlyprintk root=/dev/mmcblk0p2 rootwait

board/beelink/gs1/genimage.cfg

@@ -1,34 +0,0 @@
-image boot.vfat {
-	vfat {
-		files = {
-			"Image",
-			"sun50i-h6-beelink-gs1.dtb",
-			"extlinux"
-		}
-	}
-
-	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"
-	}
-}

board/beelink/gs1/post-build.sh

@@ -1,4 +0,0 @@
-#!/bin/sh
-BOARD_DIR="$(dirname $0)"
-
-install -m 0644 -D $BOARD_DIR/extlinux.conf $BINARIES_DIR/extlinux/extlinux.conf