perf trace: Remove unused code in builtin-trace.c

And some minor whitespace cleanup.

Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: rostedt@goodmis.org
Cc: lizf@cn.fujitsu.com
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1254808849-7829-2-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

tools/perf/builtin-trace.c

@@ -219,10 +219,6 @@ static int __cmd_trace(void)
 more:
 	event = (event_t *)(buf + head);
 
-	size = event->header.size;
-	if (!size)
-		size = 8;
-
 	if (head + event->header.size >= page_size * mmap_window) {
 		unsigned long shift = page_size * (head / page_size);
 		int res;
@@ -237,7 +233,6 @@ static int __cmd_trace(void)
 
 	size = event->header.size;
 
-
 	if (!size || process_event(event, offset, head) < 0) {
 
 		/*
@@ -290,7 +285,6 @@ int cmd_trace(int argc, const char **argv, const char *prefix __used)
 			usage_with_options(annotate_usage, options);
 	}
 
-
 	setup_pager();
 
 	return __cmd_trace();