am335x_evm.h: unsed CONFIG_BOOTDELAY

Now that ti_armv7_common.h uses config_distro_defaults.h we don't need
to include it again and then undef CONFIG_BOOTDELAY

Signed-off-by: Tom Rini <trini@konsulko.com>

include/configs/am335x_evm.h

@@ -18,10 +18,6 @@
 
 #include <configs/ti_am335x_common.h>
 
-/* Don't override the distro default bootdelay */
-#undef CONFIG_BOOTDELAY
-#include <config_distro_defaults.h>
-
 #ifndef CONFIG_SPL_BUILD
 #ifndef CONFIG_FIT
 # define CONFIG_FIT