perf tools: traceevent API cleanup, remove __tep_data2host*()

In order to make libtraceevent into a proper library, its API should be
straightforward. The __tep_data2host*() functions are going to no longer
be available as a libtraceevent API, tep_read_number() should be used
instead. This patch replaces __tep_data2host*() usage with
tep_read_number() in perf.
Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20181130154647.743979275@goodmis.orgSigned-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/trace-event-read.c

@@ -102,7 +102,7 @@ static unsigned int read4(struct tep_handle *pevent)
 
 	if (do_read(&data, 4) < 0)
 		return 0;
-	return __tep_data2host4(pevent, data);
+	return tep_read_number(pevent, &data, 4);
 }
 
 static unsigned long long read8(struct tep_handle *pevent)
@@ -111,7 +111,7 @@ static unsigned long long read8(struct tep_handle *pevent)
 
 	if (do_read(&data, 8) < 0)
 		return 0;
-	return __tep_data2host8(pevent, data);
+	return tep_read_number(pevent, &data, 8);
 }
 
 static char *read_string(void)