mx7: Remove BMODE support

i.MX7 does not support BMODE due to the erratum e10574 ("Watchdog:
A watchdog timeout or software trigger will not reset the SOC"), so
remove its support.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>

board/toradex/colibri_imx7/colibri_imx7.c

@@ -9,7 +9,6 @@
 #include <asm/arch/mx7-pins.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/gpio.h>
-#include <asm/mach-imx/boot_mode.h>
 #include <asm/mach-imx/iomux-v3.h>
 #include <asm/io.h>
 #include <common.h>
@@ -322,24 +321,6 @@ int board_init(void)
 	return 0;
 }
 
-#ifdef CONFIG_CMD_BMODE
-static const struct boot_mode board_boot_modes[] = {
-	/* 4 bit bus width */
-	{"nand", MAKE_CFGVAL(0x40, 0x34, 0x00, 0x00)},
-	{"sd1", MAKE_CFGVAL(0x10, 0x10, 0x00, 0x00)},
-	{NULL, 0},
-};
-#endif
-
-int board_late_init(void)
-{
-#ifdef CONFIG_CMD_BMODE
-	add_board_boot_modes(board_boot_modes);
-#endif
-
-	return 0;
-}
-
 #ifdef CONFIG_DM_PMIC
 int power_init_board(void)
 {