sb/amd: Remove dropped platforms

This code is now unused by any platform.

Change-Id: I60afbde6ead70f0c887866fc351b4a6a15a89287
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69120
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/drivers/amd/agesa/state_machine.c

@@ -291,10 +291,6 @@ static void amd_bs_dev_enable(void *arg)
 
 	if (!acpi_is_wakeup_s3())
 		agesa_execute_state(cb, AMD_INIT_MID);
-
-	/* FIXME */
-	if (CONFIG(AMD_SB_CIMX) && acpi_is_wakeup_s3())
-		sb_After_Pci_Restore_Init();
 }
 
 static void amd_bs_post_device(void *arg)