✔️ remove superfluous property `Meta.sub_model_type`

[jon-nfc]

model property Meta.sub_model_type was intended to be a filter for sub-models.

Details

model property Meta.sub_model_type is superfluous as property model property Meta.model_name already exists as part of django.models.Moidel.Meta.

Links

• Related: Editing an entity model within the inheritence chain incorrectly updates field entity_type #1123

Tasks

• remove model property Meta.sub_model_type
• remove model property Meta.itam_sub_model_type
• Remove class property get_model_type
• Remove class property get_comment_type
• Remove class property get_ticket_type
• Remove class property get_itam_model_type
• Remove model field entity_type
• Remove model field asset_type
• Remove model field ticket_type
• Remove model field itam_type
• Remove model field comment_type