Bye line things (#608)

line/line-openapi#112

It has been already gone.
Therefore this change cleans up definition of `ThingsEvent` as one of
webhook event.

Co-authored-by: github-actions <[email protected]>

Author: github-actions[bot]

line-openapi

@@ -1,5 +1,4 @@
 model_account_link_event.go
-model_action_result.go
 model_activated_event.go
 model_all_mentionee.go
 model_attached_module_content.go
@@ -30,7 +29,6 @@ model_leave_event.go
 model_left_members.go
 model_left_membership_content.go
 model_link_content.go
-model_link_things_content.go
 model_location_message_content.go
 model_member_joined_event.go
 model_member_left_event.go
@@ -48,15 +46,10 @@ model_postback_content.go
 model_postback_event.go
 model_renewed_membership_content.go
 model_room_source.go
-model_scenario_result.go
-model_scenario_result_things_content.go
 model_source.go
 model_sticker_message_content.go
 model_text_message_content.go
-model_things_content.go
-model_things_event.go
 model_unfollow_event.go
-model_unlink_things_content.go
 model_unsend_detail.go
 model_unsend_event.go
 model_user_mentionee.go

linebot/webhook/.openapi-generator/FILES

@@ -204,16 +204,6 @@ func setDiscriminatorPropertyEvent(r EventInterface) EventInterface {
 			v.Type = "postback"
 		}
 		return v
-	case *ThingsEvent:
-		if v.Type == "" {
-			v.Type = "things"
-		}
-		return v
-	case ThingsEvent:
-		if v.Type == "" {
-			v.Type = "things"
-		}
-		return v
 	case *UnfollowEvent:
 		if v.Type == "" {
 			v.Type = "unfollow"
@@ -381,12 +371,6 @@ func UnmarshalEvent(data []byte) (EventInterface, error) {
 			return nil, fmt.Errorf("UnmarshalEvent: Cannot read postback: %w", err)
 		}
 		return postback, nil
-	case "things":
-		var things ThingsEvent
-		if err := json.Unmarshal(data, &things); err != nil {
-			return nil, fmt.Errorf("UnmarshalEvent: Cannot read things: %w", err)
-		}
-		return things, nil
 	case "unfollow":
 		var unfollow UnfollowEvent
 		if err := json.Unmarshal(data, &unfollow); err != nil {