Remove unnecessary use of hush header file

Some files include hush.h but don't actually use it. Remove this where
possible.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/ait/cam_enc_4xx/cam_enc_4xx.c b/board/ait/cam_enc_4xx/cam_enc_4xx.c
index 7e1b16a..b5cc3ed 100644
--- a/board/ait/cam_enc_4xx/cam_enc_4xx.c
+++ b/board/ait/cam_enc_4xx/cam_enc_4xx.c
@@ -9,7 +9,6 @@
 
 #include <common.h>
 #include <errno.h>
-#include <hush.h>
 #include <linux/mtd/nand.h>
 #include <nand.h>
 #include <miiphy.h>
diff --git a/board/mcc200/auto_update.c b/board/mcc200/auto_update.c
index 2f622b0..43173ce 100644
--- a/board/mcc200/auto_update.c
+++ b/board/mcc200/auto_update.c
@@ -12,11 +12,6 @@
 #include <usb.h>
 #include <part.h>
 
-#ifdef CONFIG_SYS_HUSH_PARSER
-#include <hush.h>
-#endif
-
-
 #ifdef CONFIG_AUTO_UPDATE
 
 #ifndef CONFIG_USB_OHCI
@@ -247,7 +242,7 @@
 		/* parse_string_outer() runs off the end. */
 		addr[image_get_data_size (hdr)] = 0;
 		addr += 8;
-		parse_string_outer(addr, FLAG_PARSE_SEMICOLON);
+		run_command_list(addr, -1, 0);
 		return 0;
 	}