x86/microcode/intel: Remove unused arg of get_matching_model_microcode()

@cpu is unused, kill it.

No functionality change.
Tested-by: Thomas Voegtle <tv@lio96.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1454499225-21544-15-git-send-email-bp@alien8.deSigned-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/kernel/cpu/microcode/intel.c

@@ -287,7 +287,7 @@ static unsigned int _save_mc(struct microcode_intel **mc_saved,
  * BSP can stay in the platform.
  */
 static enum ucode_state __init
-get_matching_model_microcode(int cpu, unsigned long start,
+get_matching_model_microcode(unsigned long start,
 			     void *data, size_t size,
 			     struct mc_saved_data *mcs,
 			     unsigned long *mc_ptrs,
@@ -564,7 +564,7 @@ scan_microcode(struct mc_saved_data *mcs, unsigned long *mc_ptrs,
 			return UCODE_ERROR;
 	}
 
-	return get_matching_model_microcode(0, start, cd.data, cd.size,
+	return get_matching_model_microcode(start, cd.data, cd.size,
 					    mcs, mc_ptrs, uci);
 }