tree: Drop unused <delay.h>

Change-Id: I265e427254ce9f735e65b0631c43f98bc778a34f
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81812
Reviewed-by: Jonathon Hall <jonathon.hall@puri.sm>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>
Reviewed-by: Yidi Lin <yidilin@google.com>

src/ec/clevo/it5570e/commands.c

@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <console/console.h>
-#include <delay.h>
 #include <device/mmio.h>
 #include <ec/acpi/ec.h>
 #include <swab.h>