amdfam10 boards: Drop AMD_SB_CIMX

Copy-paste, boards do not set this.

Change-Id: I4c0795a483948b1e357388a5ad639c3f1950bbc8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30625
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/northbridge/amd/amdfam10/northbridge.c

@@ -49,10 +49,6 @@
 #include <cpu/amd/model_10xxx_rev.h>
 #endif
 
-#if IS_ENABLED(CONFIG_AMD_SB_CIMX)
-#include <sb_cimx.h>
-#endif
-
 #if IS_ENABLED(CONFIG_DIMM_DDR3)
 #include "../amdmct/mct_ddr3/s3utils.h"
 #endif
@@ -1948,10 +1944,6 @@ static void cpu_bus_init(struct device *dev)
 	detect_and_enable_probe_filter(dev);
 	detect_and_enable_cache_partitioning(dev);
 	initialize_cpus(dev->link_list);
-#if IS_ENABLED(CONFIG_AMD_SB_CIMX)
-	sb_After_Pci_Init();
-	sb_Mid_Post_Init();
-#endif
 }
 
 static struct device_operations cpu_bus_ops = {