Remove custom org.matrix.msc4075.rtc.notification.parent relation type (#4979)

* Remove custom `org.matrix.msc4075.rtc.notification.parent` relation type

Signed-off-by: Timo K <toger5@hotmail.de>

* fix test

Signed-off-by: Timo K <toger5@hotmail.de>

* Fix test post rebase

---------

Signed-off-by: Timo K <toger5@hotmail.de>
Co-authored-by: Valere <bill.carson@valrsoft.com>

Author: toger5

spec/unit/matrixrtc/MatrixRTCSession.spec.ts

@@ -333,7 +333,7 @@ describe("MatrixRTCSession", () => {
                 "notification_type": "ring",
                 "m.relates_to": {
                     event_id: ownMembershipId,
-                    rel_type: "org.matrix.msc4075.rtc.notification.parent",
+                    rel_type: "m.reference",
                 },
                 "lifetime": 30000,
                 "sender_ts": expect.any(Number),
@@ -355,7 +355,7 @@ describe("MatrixRTCSession", () => {
                     "m.mentions": { room: true, user_ids: [] },
                     "m.relates_to": {
                         event_id: expect.any(String),
-                        rel_type: "org.matrix.msc4075.rtc.notification.parent",
+                        rel_type: "m.reference",
                     },
                     "notification_type": "ring",
                     "sender_ts": expect.any(Number),

src/@types/event.ts

@@ -165,7 +165,6 @@ export enum RelationType {
     // moreover, our tests currently use the unstable prefix. Use THREAD_RELATION_TYPE.name.
     // Once we support *only* the stable prefix, THREAD_RELATION_TYPE can die and we can switch to this.
     Thread = "m.thread",
-    unstable_RTCNotificationParent = "org.matrix.msc4075.rtc.notification.parent",
 }
 
 export enum MsgType {

src/matrixrtc/MatrixRTCSession.ts

@@ -690,7 +690,7 @@ export class MatrixRTCSession extends TypedEventEmitter<
                 "notification_type": notificationType,
                 "m.relates_to": {
                     event_id: parentEventId,
-                    rel_type: RelationType.unstable_RTCNotificationParent,
+                    rel_type: RelationType.Reference,
                 },
                 "sender_ts": Date.now(),
                 "lifetime": 30_000, // 30 seconds