omap4: Remove CONFIG_SYS_MMC_SET_DEV

This is only used on !CONFIG_GENERIC_MMC which is false here.

Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/include/configs/omap4_common.h b/include/configs/omap4_common.h
index 01b4d6c..4ace07b 100644
--- a/include/configs/omap4_common.h
+++ b/include/configs/omap4_common.h
@@ -106,7 +106,6 @@
 #define CONFIG_GENERIC_MMC		1
 #define CONFIG_MMC			1
 #define CONFIG_OMAP_HSMMC		1
-#define CONFIG_SYS_MMC_SET_DEV		1
 #define CONFIG_DOS_PARTITION		1