drop useless parentheses

src/main/java/org/heigit/ohsome/clustertools/CreateH2Extract.java

@@ -120,7 +120,7 @@ public class CreateH2Extract {
             "insert into metadata (key,value) values (?,?)")
     ) {
       if (!cmdArgs.skipExtractRegionCheck) {
-        Geometry extractRegion = (new GeoJSONReader()).read(keytables.metadata("extract.region"));
+        Geometry extractRegion = new GeoJSONReader().read(keytables.metadata("extract.region"));
         if (!extractRegion.contains(OSHDBGeometryBuilder.getGeometry(bbox))) {
           System.err.println("error: bbox not fully contained in input region");
           System.exit(2);
@@ -141,7 +141,7 @@ public class CreateH2Extract {
       Set<OSHDBTag> tags = new HashSet<>();
       Set<OSHDBRole> roles = new HashSet<>();
       TagTranslator tt = new TagTranslator(keytables.getConnection());
-      FilterExpression filter = (new FilterParser(tt)).parse(cmdArgs.filter != null
+      FilterExpression filter = new FilterParser(tt).parse(cmdArgs.filter != null
           ? cmdArgs.filter : "type:node or type:way or type:relation");
 
       ScanQuery<Long, GridOSHEntity> scanQuery = new ScanQuery<>((key, cell) -> {
@@ -297,7 +297,7 @@ public class CreateH2Extract {
             String metadataValue = metadata.getString(2);
             insertMetadata.setString(1, metadataKey);
             if (metadataKey.equalsIgnoreCase("extract.region")) {
-              metadataValue = (new GeoJSONWriter())
+              metadataValue = new GeoJSONWriter()
                   .write(OSHDBGeometryBuilder.getGeometry(bbox)).toString();
             }
             if (metadataKey.startsWith("data.")) {