perf tools: Removing hists pair argument from output path

The hists pointer is now part of the 'struct hist_entry'.

And since the overhead and baseline columns are split now, there's no
reason to pass it through the output path.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1349354994-17853-5-git-send-email-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 5cb577a..413c65a1b 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -214,8 +214,7 @@
 		first = false;
 
 		hists__match(&evsel_old->hists, &evsel->hists);
-		hists__fprintf(&evsel->hists, &evsel_old->hists,
-			       true, 0, 0, stdout);
+		hists__fprintf(&evsel->hists, true, 0, 0, stdout);
 	}
 
 out_delete: