[TASK] Drop unused ext_emconf v1 fields from TER v2
The following fields are not needed anymore and can be removed:
- tx_terfe2_domain_model_version.load_order
- tx_terfe2_domain_model_version.priority
- tx_terfe2_domain_model_version.shy
- tx_terfe2_domain_model_version.internal
- tx_terfe2_domain_model_version.do_not_load_in_fe
- tx_terfe2_domain_model_version.module
- tx_terfe2_domain_model_version.modify_tables
- tx_terfe2_domain_model_version.lock_type
- tx_terfe2_domain_model_version.cgl_compliance
- tx_terfe2_domain_model_version.cgl_compliance_note
The fields are not used at all anymore.