ARM: am3517-evm: Remove non-DM legacy code

With both SPL and U-Boot now supporting DM, we can start removing
legacy code.  This patch removes the legacy MMC initalization and
legacy I2C initialization since both are now available via DM and
device tree.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/board/logicpd/am3517evm/am3517evm.c b/board/logicpd/am3517evm/am3517evm.c
index 2153878..95c4cfc 100644
--- a/board/logicpd/am3517evm/am3517evm.c
+++ b/board/logicpd/am3517evm/am3517evm.c
@@ -115,11 +115,6 @@
 {
 	u32 reset;
 
-#if !defined(CONFIG_DM_I2C)
-#ifdef CONFIG_SYS_I2C_OMAP24XX
-	i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
-#endif
-#endif
 	omap_die_id_display();
 
 	am3517_evm_musb_init();
@@ -143,12 +138,6 @@
 	MUX_AM3517EVM();
 }
 
-#if defined(CONFIG_MMC)
-int board_mmc_init(bd_t *bis)
-{
-	return omap_mmc_init(0, 0, 0, -1, -1);
-}
-#endif
 
 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)
 int board_eth_init(bd_t *bis)