osm-s-mx93: Drop unnecessary BOARD_EARLY_INIT_F usage

This platform enables CONFIG_BOARD_EARLY_INIT_F and then has a
do-nothing board_early_init_f function. Change to not enabling the
option and so not needing an empty function.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>

board/kontron/osm-s-mx93/osm-s-mx93.c

@@ -22,11 +22,6 @@
 
 #include "../common/hw-uid.h"
 
-int board_early_init_f(void)
-{
-	return 0;
-}
-
 #if IS_ENABLED(CONFIG_KONTRON_HW_UID)
 struct uid_otp_loc uid_otp_locations[] = {
 	{

board/kontron/osm-s-mx93/spl.c

@@ -132,8 +132,6 @@ void board_init_f(ulong dummy)
 
 	arch_cpu_init();
 
-	board_early_init_f();
-
 	spl_early_init();
 
 	preloader_console_init();