cleanup based on new js-sdk impl

src/state/SessionBehaviors.ts

@@ -8,6 +8,7 @@ Please see LICENSE in the repository root for full details.
 import {
   type CallMembership,
   isLivekitTransport,
+  type LivekitTransport,
   type MatrixRTCSession,
   MatrixRTCSessionEvent,
 } from "matrix-js-sdk/lib/matrixrtc";
@@ -20,18 +21,15 @@ import {
   type ObservableScope,
 } from "./ObservableScope";
 import { type Behavior } from "./Behavior";
-import { type LivekitTransportWithVersion } from "./CallViewModel/remoteMembers/ConnectionManager";
 
 export const membershipsAndTransports$ = (
   scope: ObservableScope,
   memberships$: Behavior<Epoch<CallMembership[]>>,
 ): {
   membershipsWithTransport$: Behavior<
-    Epoch<
-      { membership: CallMembership; transport?: LivekitTransportWithVersion }[]
-    >
+    Epoch<{ membership: CallMembership; transport?: LivekitTransport }[]>
   >;
-  transports$: Behavior<Epoch<LivekitTransportWithVersion[]>>;
+  transports$: Behavior<Epoch<LivekitTransport[]>>;
 } => {
   /**
    * Lists the transports used by ourselves, plus all other MatrixRTC session
@@ -49,12 +47,7 @@ export const membershipsAndTransports$ = (
           const transport = membership.getTransport(oldestMembership);
           return {
             membership,
-            transport: isLivekitTransport(transport)
-              ? {
-                  ...transport,
-                  useMatrix2: membership.kind === "rtc",
-                }
-              : undefined,
+            transport: isLivekitTransport(transport) ? transport : undefined,
           };
         });
       }),