Update manifest and remove unrequired XML tests

MANIFEST

@@ -2,13 +2,6 @@
 Build.PL
 cpanfile
 cpanfile.snapshot
-json_schemas/Experiment.schema.08012016.json
-json_schemas/Experiment.schema.26012016.json
-json_schemas/Experiment.schema.dev.json
-json_schemas/Experiment.schema.json
-json_schemas/Sample.schema.1603.json
-json_schemas/Sample.schema.dev.json
-json_schemas/Sample.validonor.json
 lib/.perltidyrc
 lib/.ship.conf
 lib/.travis.yml
@@ -87,48 +80,28 @@ t/data/test_data.json
 t/data/test_good_rule_set.json
 t/data/test_good_rule_set_with_cons_check.json
 t/data/test_out.sample.xlsx
-t/data/TSV/sample.tsv
-t/data/TSV/sampleset.tsv
 t/data/XML/experiment_good.xml
 t/data/XML/experiment_good_noroot.xml
 t/data/XML/experimentset_bad.xml
 t/data/XML/primary_cell.sampleset_bad.xml
 t/data/XML/primary_cell.sampleset_good.xml
 t/data/XML/primary_tissue.sampleset_bad.xml
 t/data/XML/primary_tissue.sampleset_good.xml
-t/data/XML/sample_bad.xml
-t/data/XML/sample_good.xml
-t/data/XML/sampleset_bad.xml
-t/data/XML/sampleset_good.xml
 t/Excel/createSampleTab.t
 t/Excel/XLSXBioSampleset_loader.t
 t/faang_breed_checks.t
 t/loader.t
 t/object_creation.t
 t/ols_lookup.t
 t/prototype_script.t
-t/test_out.experimentset.bad.xlsx
-t/test_out.sampleset.bad.xlsx
-t/test_out.sampleset.good.xlsx
-t/TSVsample_loader.t
-t/TSVsampleset_loader.t
 t/validate_attributes.t
 t/validate_primarycell_bad.t
 t/validate_primarycell_good.t
 t/validate_primarytissue_bad.t
 t/validate_primarytissue_good.t
-t/validate_xml_experiment.t
-t/validate_xml_root.t
-t/validate_xml_experimentset.t
-t/validate_xml_sample.bad.t
-t/validate_xml_sample.good.t
-t/validate_xml_sampleset.bad.t
-t/validate_xml_sampleset.good.t
 t/validator.t
 t/XMLexperiment_loader.t
 t/XMLexperimentset_loader.t
-t/XMLsample_loader.t
-t/XMLsampleset_loader.t
 web/dev.sh
 web/public/biosamples_template.xlsx
 web/public/css/site.css