soc/intel/cse: Remove unused header file

Systemagent related functions are not used in this file. Remove the
unused the header file.

Change-Id: Ifbb04898e9dcebef96d8c73771e66e0d6fabc7fb
Signed-off-by: Krishna Prasad Bhat <krishna.p.bhat.d@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78312
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Ronak Kanabar <ronak.kanabar@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/common/block/cse/cse_lite.c b/src/soc/intel/common/block/cse/cse_lite.c
index bd06bbf..d21c933 100644
--- a/src/soc/intel/common/block/cse/cse_lite.c
+++ b/src/soc/intel/common/block/cse/cse_lite.c
@@ -13,7 +13,6 @@
 #include <intelblocks/cse.h>
 #include <intelblocks/cse_layout.h>
 #include <intelblocks/spi.h>
-#include <intelblocks/systemagent.h>
 #include <security/vboot/misc.h>
 #include <security/vboot/vboot_common.h>
 #include <soc/intel/common/reset.h>