model_2065x: Use common i945-ivy TSEG SMM init.

Change-Id: I0302cbaeb45a55a4cfee94692eb7372f2b6b206d
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/10468
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

src/southbridge/intel/ibexpeak/pch.h

@@ -67,11 +67,6 @@ void intel_pch_finalize_smm(void);
 #include "chip.h"
 void pch_enable(device_t dev);
 #endif
-/* These helpers are for performing SMM relocation. */
-void southbridge_smm_init(void);
-void southbridge_trigger_smi(void);
-void southbridge_clear_smi_status(void);
-
 int pch_silicon_revision(void);
 int pch_silicon_type(void);
 int pch_silicon_supported(int type, int rev);