asm-generic/u-boot.h: Remove bi_memstart & bi_memsize from bd_info

bi_memstart & bi_memsize are now not referenced any more. This patch
removes their definitions from the bd_info struct.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/asm-generic/u-boot.h b/include/asm-generic/u-boot.h
index 99d3fe3..637de0c 100644
--- a/include/asm-generic/u-boot.h
+++ b/include/asm-generic/u-boot.h
@@ -27,8 +27,6 @@
 #include <linux/types.h>
 
 struct bd_info {
-	unsigned long	bi_memstart;	/* start of DRAM memory */
-	phys_size_t	bi_memsize;	/* size	 of DRAM memory in bytes */
 	unsigned long	bi_flashstart;	/* start of FLASH memory */
 	unsigned long	bi_flashsize;	/* size	 of FLASH memory */
 	unsigned long	bi_flashoffset; /* reserved area for startup monitor */