mxssb: Remove useless #defines

Remove these useless #define'd values.
Signed-off-by: Marek Vasut <marex@denx.de>

mxssb.c

@@ -89,11 +89,6 @@ struct sb_image_ctx {
 	struct sb_boot_image_header	payload;
 };
 
-#define	SB_IVT_LOAD_ADDR	0x8000
-#define	SB_SPL_LOAD_ADDR	0x0
-#define	SB_SPL_ENTRY_ADDR	0x14
-#define	SB_UBOOT_LOAD_ADDR	0x40000100
-
 /*
  * Instruction semantics:
  * NOOP