src/vs/platform/userDataSync/common/userDataAutoSyncService.ts/UserDataAutoSyncService/syncUrl
class UserDataAutoSyncService:	private set syncUrl(syncUrl: URI | undefined) {
		if (syncUrl) {
			this.storageService.store(storeUrlKey, syncUrl.toString(), StorageScope.GLOBAL, StorageTarget.MACHINE);
		} else {
			this.storageService.remove(storeUrlKey, StorageScope.GLOBAL);
		}
	}