perf evlist: Remove unused perf_evlist__fprintf() method

Ditch it, noone is using it, one more stdio.h include in a hot header.

Fix the fallout in parse-events.y, where we end up using a FILE pointer,
I think due to YYDEBUG being set and in some places, like Amazon Linux 1
we don't get stdio.h included by luck, like in most other places, add a
explicit stdio.h include directive.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-37k5q0lhdbo2hvvfbnnzn7og@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/evlist.h

@@ -7,7 +7,6 @@
 #include <linux/refcount.h>
 #include <linux/list.h>
 #include <api/fd/array.h>
-#include <stdio.h>
 #include <internal/evlist.h>
 #include <internal/evsel.h>
 #include "events_stats.h"
@@ -249,8 +248,6 @@ static inline struct evsel *evlist__last(struct evlist *evlist)
 	return container_of(evsel, struct evsel, core);
 }
 
-size_t perf_evlist__fprintf(struct evlist *evlist, FILE *fp);
-
 int perf_evlist__strerror_open(struct evlist *evlist, int err, char *buf, size_t size);
 int perf_evlist__strerror_mmap(struct evlist *evlist, int err, char *buf, size_t size);