perf tools: Remove unused evsel parameter from machine__resolve_callchain

Removing unused evsel parameter from machine__resolve_callchain
function. Plus related header file and callers changes.

The evsel parameter is unused since following commit:
  perf callchain: Make callchain cursors TLS
  commit 472606458f3e1ced5fe3cc5f04e90a6b5a4732cf
  Author: Namhyung Kim <namhyung.kim@lge.com>
  Date:   Thu May 31 14:43:26 2012 +0900

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Arun Sharma <asharma@fb.com>
Cc: Benjamin Redelings <benjamin.redelings@nescent.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Ulrich Drepper <drepper@gmail.com>
Link: http://lkml.kernel.org/r/1339420814-7379-9-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index ea8ce8e..40b0ffc 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -69,7 +69,7 @@
 
 	if ((sort__has_parent || symbol_conf.use_callchain)
 	    && sample->callchain) {
-		err = machine__resolve_callchain(machine, evsel, al->thread,
+		err = machine__resolve_callchain(machine, al->thread,
 						 sample->callchain, &parent);
 		if (err)
 			return err;
@@ -140,7 +140,7 @@
 	struct hist_entry *he;
 
 	if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
-		err = machine__resolve_callchain(machine, evsel, al->thread,
+		err = machine__resolve_callchain(machine, al->thread,
 						 sample->callchain, &parent);
 		if (err)
 			return err;