removed unused modules

.../graph/neo4j/config/Neo4jGraphGeneratorConfigBuilder.java

...k/generator/graph/neo4j/test/Neo4jGraphGeneratorTest.java

trainbenchmark-generator-rdf/.gitignore

trainbenchmark-generator-rdf/build.gradle

...me/mit/trainbenchmark/generator/rdf/RdfGeneratorMain.java

...u/bme/mit/trainbenchmark/generator/rdf/RdfSerializer.java

...ainbenchmark/generator/rdf/config/RdfGeneratorConfig.java

...hmark/generator/rdf/config/RdfGeneratorConfigBuilder.java

trainbenchmark-generator-rdf/src/main/resources/.gitignore

...t/trainbenchmark/generator/rdf/test/RdfGeneratorTest.java

trainbenchmark-generator-sql/build.gradle

...me/mit/trainbenchmark/generator/sql/SqlGeneratorMain.java

...u/bme/mit/trainbenchmark/generator/sql/SqlSerializer.java

...ainbenchmark/generator/sql/config/SqlGeneratorConfig.java

...hmark/generator/sql/config/SqlGeneratorConfigBuilder.java

trainbenchmark-generator-sql/src/main/resources/.gitignore

...me/mit/trainbenchmark/generator/sql/SqlGeneratorTest.java

trainbenchmark-tool-blazegraph/.gitignore

trainbenchmark-tool-blazegraph/build.gradle

...nchmark/benchmark/blazegraph/BlazegraphBenchmarkMain.java