omap4_panda: Don't use ulpi_reset

Fixes this error message when USB is started.
"ULPI: ulpi_reset: failed writing reset bit"

It is pointless to manually reset the ULPI as the USB Host
Reset and PHY RESET line should take care of that.

Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Roger Quadros <rogerq@ti.com>

include/configs/omap4_panda.h

@@ -36,9 +36,6 @@
 #define CONFIG_CMD_PING
 #define CONFIG_CMD_DHCP
 
-#define CONFIG_USB_ULPI
-#define CONFIG_USB_ULPI_VIEWPORT_OMAP
-
 #include <configs/omap4_common.h>
 #define CONFIG_CMD_NET