ramips: use new image build code for D-Link DCS-930 family

Drop the factory images and the firmware tool to create them. They don't
work any more, since the factory image has an uImage header covering the
whole kernel + rootfs. This way the uImage splitter will not be able to
find the rootfs and the kernel will panic later on.

The factory images were most likely added at a time the board had
distinct partitions for kernel and rootfs.

Signed-off-by: Mathias Kresin <dev@kresin.me>

tools/firmware-utils/src/mkdcs932.c

@@ -1,39 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License,
- * version 2 as published by the Free Software Foundation.
- *
- * (C) John Crispin <blogic@openwrt.org>
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <errno.h>
-
-int main(int argc, char **argv)
-{
-	uint32_t t = 0, sum = 0x55aa55aa;
-	int fd;
-
-	if ((argc != 2) || ((fd = open(argv[1], O_RDWR)) == -1)) {
-		fprintf(stderr, "Usage: %s input_file\n", *argv);
-		return -EINVAL;
-	}
-
-	lseek(fd, -4, SEEK_END);
-	write(fd, &t, 4);
-	lseek(fd, 0, SEEK_SET);
-
-	while (read(fd, &t, 4) > 0)
-		sum -= t;
-
-	lseek(fd, -4, SEEK_END);
-	write(fd, &sum, 4);
-	close(fd);
-
-	return 0;
-}