src: Remove unused 'include <delay.h>'

Change-Id: I6afea5c102299e570378a1656d3dcd329a373399
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44093
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/drivers/crb/tpm.c

@@ -14,7 +14,6 @@
 
 #include <timer.h>
 #include <console/console.h>
-#include <delay.h>
 #include <device/mmio.h>
 #include <string.h>
 #include <soc/pci_devs.h>