fdt: Drop #ifdef around board_fdt_blob_setup()

This serves no purpose. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index fbdc92c..299a2c3 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1203,7 +1203,6 @@
 	return 0;
 }
 
-#if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE)
 /*
  * For CONFIG_OF_SEPARATE, the board may optionally implement this to
  * provide and/or fixup the fdt.
@@ -1226,7 +1225,6 @@
 
 	return fdt_blob;
 }
-#endif
 
 int fdtdec_set_ethernet_mac_address(void *fdt, const u8 *mac, size_t size)
 {