fdt_support.h: Remove duplicated declarations

There are two duplicated declarations for ft_cpu_setup() and
ft_pci_setup().

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
diff --git a/include/fdt_support.h b/include/fdt_support.h
index f6f46bb..72a5b90 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -203,8 +203,6 @@
  * called at the end of the image_setup_libfdt() is to do that convertion.
  */
 void ft_board_setup_ex(void *blob, struct bd_info *bd);
-void ft_cpu_setup(void *blob, struct bd_info *bd);
-void ft_pci_setup(void *blob, struct bd_info *bd);
 
 /**
  * Add system-specific data to the FDT before booting the OS.