coresight: etm: perf: Sink selection using sysfs is deprecated

When using the perf interface, sink selection using sysfs is
deprecated.
Signed-off-by: NLinu Cherian <lcherian@marvell.com>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200916191737.4001561-14-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/hwtracing/coresight/coresight-etm-perf.c

@@ -222,8 +222,6 @@ static void *etm_setup_aux(struct perf_event *event, void **pages,
 	if (event->attr.config2) {
 		id = (u32)event->attr.config2;
 		sink = coresight_get_sink_by_id(id);
-	} else {
-		sink = coresight_get_enabled_sink(true);
 	}
 
 	mask = &event_data->mask;