Fixed unused array

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

@@ -362,7 +362,7 @@ public class TravelDbHelper {
 			cursor.close();
 		}
 		LinkedHashMap<WikivoyageSearchResult, List<WikivoyageSearchResult>> res = new LinkedHashMap<>();
-		parts = parts == null ? new String[]{} : parts;
+		if (parts != null) {
 			for (String header : parts) {
 				WikivoyageSearchResult searchResult = headerObjs.get(header);
 				List<WikivoyageSearchResult> results = navMap.get(header);
@@ -380,6 +380,7 @@ public class TravelDbHelper {
 					res.put(searchResult, results);
 				}
 			}
+		}
 		return res;
 	}