Remove unused models (#67)

Author: feng-tao

metadata_service/entity/table_detail.py

@@ -84,42 +84,6 @@ class Meta:
         register_as_scheme = True
 
 
-@attr.s(auto_attribs=True, kw_only=True)
-class PiiDetail:
-    pii_semantic_type: Optional[str] = None
-    pii_forget_type: Optional[str] = None
-
-
-class PiiDetailSchema(AttrsSchema):
-    class Meta:
-        target = PiiDetail
-        register_as_scheme = True
-
-
-@attr.s(auto_attribs=True, kw_only=True)
-class ForeignKey:
-    table_uri: Optional[str] = None
-    column_name: Optional[str] = None
-
-
-class ForeignKeySchema(AttrsSchema):
-    class Meta:
-        target = ForeignKey
-        register_as_scheme = True
-
-
-@attr.s(auto_attribs=True, kw_only=True)
-class DataDetail:
-    data_semantic_type: Optional[str] = None
-    data_semantic_reference: Optional[str] = None
-
-
-class DataDetailchema(AttrsSchema):
-    class Meta:
-        target = DataDetail
-        register_as_scheme = True
-
-
 @attr.s(auto_attribs=True, kw_only=True)
 class Application:
     application_url: str = attr.ib()