board_f: Drop the extra fdtdec_prepare_fdt()

This is already called earlier, from fdtdec_setup(), so drop this unnecessary
call from the init sequence.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

common/board_f.c

@@ -912,9 +912,6 @@ static init_fnc_t init_sequence_f[] = {
 #ifdef CONFIG_SANDBOX
 	sandbox_early_getopt_check,
 #endif
-#ifdef CONFIG_OF_CONTROL
-	fdtdec_prepare_fdt,
-#endif
 	display_options,	/* say that we are here */
 	display_text_info,	/* show debugging info if required */
 #if defined(CONFIG_MPC8260)