remove slots that aren't used by any class, according to assets/schema_pattern_linting.txt

[turbomam]

best practice says that a migrator should be written

if we decide to remove some that come from MIxS, then we would (currently) edit assets/import_mixs_slots_regardless.tsv

• biogas_retention_time
• biogas_temperature
• chimera_check, MIXS:0000052
• completion_date
• date_created
• definition
• ecosystem_path_id
• emsl_store_temp
• etl_software_version
• has_boolean_value
• input_volume
• insdc_analysis_identifiers
• insdc_secondary_sample_identifiers
• insdc_sra_ena_study_identifiers
• jgi_portal_analysis_project_identifiers
• material_component_separation
• mgnify_analysis_identifiers
• modifier_substance
• nucl_acid_ext, MIXS:0000037
• object
• ontology_class_set
• pool_dna_extracts, MIXS:0000325
• predicate
• relations
• samp_vol_we_dna_ext, MIXS:0000111
• sample_collection_day
• sample_collection_hour
• sample_collection_minute
• sample_collection_month
• sample_collection_year
• seq_meth, MIXS:0000050
• seq_quality_check, MIXS:0000051
• soil_annual_season_temp
• value

[turbomam]

slots with sub-slots

• analysis_identifiers
• assembly_identifiers
• biosample_identifiers
• concentration
• emsl_identifiers
• gff_coordinate
• gnps_identifiers
• gold_identifiers
• gold_path_field
• igsn_identifiers
• insdc_identifiers
• jgi_portal_identifiers
• metagenome_assembly_parameter
• mgnify_identifiers
• neon_identifiers
• object_set
• omics_processing_identifiers
• read_qc_analysis_statistic
• study_identifiers