SSDM-4233: removed dead code

...c/server/business/bo/common/EntityPropertiesEnricher.java

...rver/business/bo/common/MaterialEntityPropertyRecord.java

...neric/server/business/bo/common/VocabularyTermRecord.java

...erver/business/bo/datasetlister/IDatasetListingQuery.java

...ver/business/bo/materiallister/IMaterialListingQuery.java

.../server/business/bo/samplelister/ISampleListingQuery.java

...ric/server/business/bo/common/EntityListingTestUtils.java

...rver/business/bo/common/EntityPropertiesEnricherTest.java

.../business/bo/materiallister/MaterialListingQueryTest.java

...r/business/bo/samplelister/SampleSetListingQueryTest.java