fix: remove no longer used code related to collab room loading (#5699)

Co-authored-by: dwelle <luzar.david@gmail.com>

src/excalidraw-app/app_constants.ts

@@ -33,7 +33,6 @@ export const STORAGE_KEYS = {
   LOCAL_STORAGE_ELEMENTS: "excalidraw",
   LOCAL_STORAGE_APP_STATE: "excalidraw-state",
   LOCAL_STORAGE_COLLAB: "excalidraw-collab",
-  LOCAL_STORAGE_KEY_COLLAB_FORCE_FLAG: "collabLinkForceLoadFlag",
   LOCAL_STORAGE_LIBRARY: "excalidraw-library",
   VERSION_DATA_STATE: "version-dataState",
   VERSION_FILES: "version-files",

src/excalidraw-app/collab/Collab.tsx

@@ -25,7 +25,6 @@ import {
   INITIAL_SCENE_UPDATE_TIMEOUT,
   LOAD_IMAGES_TIMEOUT,
   WS_SCENE_EVENT_TYPES,
-  STORAGE_KEYS,
   SYNC_FULL_SCENE_INTERVAL_MS,
 } from "../app_constants";
 import {
@@ -225,18 +224,6 @@ class Collab extends PureComponent<Props, CollabState> {
 
       preventUnload(event);
     }
-
-    if (this.isCollaborating || this.portal.roomId) {
-      try {
-        localStorage?.setItem(
-          STORAGE_KEYS.LOCAL_STORAGE_KEY_COLLAB_FORCE_FLAG,
-          JSON.stringify({
-            timestamp: Date.now(),
-            room: this.portal.roomId,
-          }),
-        );
-      } catch {}
-    }
   });
 
   saveCollabRoomToFirebase = async (