Remove unused route_name in TravelGpx

OsmAnd/src/net/osmand/plus/wikivoyage/data/TravelObfHelper.java

@@ -129,7 +129,7 @@ public class TravelObfHelper implements TravelHelper {
 	);
 	// Do not clutter GPX with tags that are always generated.
 	private static final Set<String> doNotSaveAmenityGpxTags = Set.of(
-			"date", "distance", "route_name", "route_radius",
+			"date", "distance", "route_radius",
 			"avg_ele", "min_ele", "max_ele", "start_ele", "ele_graph", "diff_ele_up", "diff_ele_down",
 			"avg_speed", "min_speed", "max_speed", "time_moving", "time_moving_no_gaps", "time_span", "time_span_no_gaps"
 	);