tools: Drop xway-swap-bytes tool

This is very old and does not appear to be used. The CONFIG option
enabling it is no-longer present. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>

README

@@ -286,13 +286,6 @@ The following options need to be configured:
 		same as CFG_SYS_DDR_SDRAM_BASE for  all Power SoCs. But
 		it could be different for ARM SoCs.
 
-- MIPS CPU options:
-		CONFIG_XWAY_SWAP_BYTES
-
-		Enable compilation of tools/xway-swap-bytes needed for Lantiq
-		XWAY SoCs for booting from NOR flash. The U-Boot image needs to
-		be swapped if a flash programmer is used.
-
 - ARM options:
 		CFG_SYS_EXCEPTION_VECTORS_HIGH
 

tools/Makefile

@@ -27,7 +27,6 @@ ifneq ($(HOST_TOOLS_ALL),)
 CONFIG_ARCH_KIRKWOOD = y
 CONFIG_CMD_LOADS = y
 CONFIG_CMD_NET = y
-CONFIG_XWAY_SWAP_BYTES = y
 CONFIG_NETCONSOLE = y
 CONFIG_ARCH_SUNXI = y
 endif
@@ -61,9 +60,6 @@ HOSTCFLAGS_gen_ethaddr_crc.o := -pedantic
 hostprogs-$(CONFIG_CMD_LOADS) += img2srec
 HOSTCFLAGS_img2srec.o := -pedantic
 
-hostprogs-$(CONFIG_XWAY_SWAP_BYTES) += xway-swap-bytes
-HOSTCFLAGS_xway-swap-bytes.o := -pedantic
-
 hostprogs-y += mkenvimage
 mkenvimage-objs := mkenvimage.o os_support.o lib/crc32.o
 

tools/xway-swap-bytes.c

-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#ifndef BUFSIZ
-# define BUFSIZ 4096
-#endif
-
-#undef BUFSIZ
-# define BUFSIZ 64
-int main (void)
-{
-	short ibuff[BUFSIZ], obuff[BUFSIZ];
-	int rc, i, len;
-
-	while ((rc = read (0, ibuff, sizeof (ibuff))) > 0) {
-		memset (obuff, 0, sizeof (obuff));
-		for (i = 0; i < (rc + 1) / 2; i++) {
-			obuff[i] = ibuff[i ^ 1];
-		}
-
-		len = (rc + 1) & ~1;
-
-		if (write (1, obuff, len) != len) {
-			perror ("read error");
-			return (EXIT_FAILURE);
-		}
-
-		memset (ibuff, 0, sizeof (ibuff));
-	}
-
-	if (rc < 0) {
-		perror ("read error");
-		return (EXIT_FAILURE);
-	}
-	return (EXIT_SUCCESS);
-}