cmd: fat: remove unused includes

Remove unused includes from cmd/fat.c.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/fat.c b/cmd/fat.c
index 50df127..abce2f1 100644
--- a/cmd/fat.c
+++ b/cmd/fat.c
@@ -8,13 +8,7 @@
  * Boot support
  */
 #include <common.h>
-#include <command.h>
-#include <s_record.h>
-#include <net.h>
-#include <ata.h>
-#include <asm/io.h>
 #include <mapmem.h>
-#include <part.h>
 #include <fat.h>
 #include <fs.h>