Revert "soc/intel/meteorlake: Provide access to IOE through P2SB SBI for TCSS"

This reverts commit eb80b1efa3.

Reason for revert: Results into hard hang with serial debug msg inside FSP-S.

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I8e7cf804828da8939f591eb0770c8daf830c8d94
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66304
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>

src/soc/intel/meteorlake/chip.h

@@ -126,8 +126,6 @@ struct soc_intel_meteorlake_config {
 	/* Program OC pins for TCSS */
 	struct tcss_port_config tcss_ports[MAX_TYPE_C_PORTS];
 	uint8_t tbt_pcie_port_disable[4];
-	/* Validate TBT firmware authenticated and loaded into IMR */
-	bool tbt_authentication;
 
 	/* SATA related */
 	uint8_t sata_mode;