Blackfin: bf561-ezkit: drop pointless USB code

The USB/LAN register settings are not actually used/needed in order to
drive things from U-Boot, so drop the code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

board/bf561-ezkit/bf561-ezkit.c

@@ -57,18 +57,3 @@ phys_size_t initdram(int board_type)
 	gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
 	return CONFIG_SYS_MAX_RAM_SIZE;
 }
-
-#if defined(CONFIG_MISC_INIT_R)
-/* miscellaneous platform dependent initialisations */
-int misc_init_r(void)
-{
-	/* Keep PF12 low to be able to drive the USB-LAN Extender */
-	*pFIO0_DIR = 0x0000;
-	*pFIO0_FLAG_C = 0x1000;	/* Clear PF12 */
-	SSYNC();
-	*pFIO0_POLAR = 0x0000;
-	SSYNC();
-
-	return 0;
-}
-#endif