tracing: fix warning in kernel/trace/trace.c

this warning:

  kernel/trace/trace.c: In function ‘print_lat_fmt’:
  kernel/trace/trace.c:1826: warning: unused variable ‘state’

Triggers because 'state' has become unused - remove it.
Signed-off-by: NIngo Molnar <mingo@elte.hu>

kernel/trace/trace.c

@@ -1816,7 +1816,6 @@ print_lat_fmt(struct trace_iterator *iter, unsigned int trace_idx, int cpu)
 	char *comm;
 	int S, T;
 	int i;
-	unsigned state;
 
 	if (entry->type == TRACE_CONT)
 		return TRACE_TYPE_HANDLED;