Rename and fix Graphalytics configuration file

Author: szarnyasg

params-graphalytics-weighted.ini renamed to params-graphalytics.ini

@@ -1,7 +1,5 @@
 ldbc.snb.datagen.generator.scaleFactor:graphalytics.1
 
-ldbc.snb.datagen.generator.person.similarity:ldbc.snb.datagen.objects.similarity.GeoDistanceSimilarity
-
 ldbc.snb.datagen.serializer.personSerializer:ldbc.snb.datagen.serializer.graphalytics.CSVPersonSerializerExtended
-ldbc.snb.datagen.serializer.invariantSerializer:ldbc.snb.datagen.serializer.snb.interactive.CSVInvariantSerializer
-ldbc.snb.datagen.serializer.personActivitySerializer:ldbc.snb.datagen.serializer.snb.interactive.CSVPersonActivitySerializer
+ldbc.snb.datagen.serializer.invariantSerializer:ldbc.snb.datagen.serializer.empty.EmptyInvariantSerializer
+ldbc.snb.datagen.serializer.personActivitySerializer:ldbc.snb.datagen.serializer.empty.EmptyPersonActivitySerializer