image: Drop IMAGE_OF_SYSTEM_SETUP

This is not needed with Kconfig, since we can use IS_ENABLED() easily
enough. Drop it.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NAlexandru Gagniuc <mr.nuke.me@gmail.com>

common/image-fdt.c

@@ -597,7 +597,7 @@ int image_setup_libfdt(bootm_headers_t *images, void *blob,
 			}
 		}
 	}
-	if (IMAGE_OF_SYSTEM_SETUP) {
+	if (IS_ENABLED(CONFIG_OF_SYSTEM_SETUP)) {
 		fdt_ret = ft_system_setup(blob, gd->bd);
 		if (fdt_ret) {
 			printf("ERROR: system-specific fdt fixup failed: %s\n",

include/image.h

@@ -49,12 +49,6 @@ struct fdt_region;
 #include <fdt_support.h>
 #endif /* FIT */
 
-#ifdef CONFIG_OF_SYSTEM_SETUP
-# define IMAGE_OF_SYSTEM_SETUP	1
-#else
-# define IMAGE_OF_SYSTEM_SETUP	0
-#endif
-
 extern ulong image_load_addr;		/* Default Load Address */
 extern ulong image_save_addr;		/* Default Save Address */
 extern ulong image_save_size;		/* Default Save Size */