Remove more unused stuff

Author: szarnyasg

src/main/java/ldbc/snb/datagen/DatagenParams.java

@@ -46,8 +46,6 @@ public class DatagenParams {
     public static final String DICTIONARY_DIRECTORY = "/dictionaries/";
     public static final String SPARKBENCH_DIRECTORY = "/sparkbench";
     public static final String IPZONE_DIRECTORY = "/ipaddrByCountries";
-    public static final String STATS_FILE = "testdata.json";
-    public static final String RDF_OUTPUT_FILE = "ldbc_socialnet_dbg";
     public static final String PERSON_COUNTS_FILE = "personFactors.txt";
     public static final String ACTIVITY_FILE = "activityFactors.txt";
 
@@ -128,7 +126,7 @@ private enum ParameterNames {
 
         private final String name;
 
-        private ParameterNames(String name) {
+        ParameterNames(String name) {
             this.name = name;
         }