perf evsel: Rename perf_evsel__fprintf() to evsel__fprintf()

As it is a 'struct evsel' method, not part of tools/lib/perf/, aka
libperf, to whom the perf_ prefix belongs.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-evlist.c

@@ -34,7 +34,7 @@ static int __cmd_evlist(const char *file_name, struct perf_attr_details *details
 		return PTR_ERR(session);
 
 	evlist__for_each_entry(session->evlist, pos) {
-		perf_evsel__fprintf(pos, details, stdout);
+		evsel__fprintf(pos, details, stdout);
 
 		if (pos->core.attr.type == PERF_TYPE_TRACEPOINT)
 			has_tracepoint = true;

tools/perf/util/evsel_fprintf.c

@@ -35,8 +35,7 @@ static int __print_attr__fprintf(FILE *fp, const char *name, const char *val, vo
 	return comma_fprintf(fp, (bool *)priv, " %s: %s", name, val);
 }
 
-int perf_evsel__fprintf(struct evsel *evsel,
-			struct perf_attr_details *details, FILE *fp)
+int evsel__fprintf(struct evsel *evsel, struct perf_attr_details *details, FILE *fp)
 {
 	bool first = true;
 	int printed = 0;

tools/perf/util/evsel_fprintf.h

@@ -15,8 +15,7 @@ struct perf_attr_details {
 	bool trace_fields;
 };
 
-int perf_evsel__fprintf(struct evsel *evsel,
-			struct perf_attr_details *details, FILE *fp);
+int evsel__fprintf(struct evsel *evsel, struct perf_attr_details *details, FILE *fp);
 
 #define EVSEL__PRINT_IP			(1<<0)
 #define EVSEL__PRINT_SYM		(1<<1)