(#6668): Some exchange has leak, shutting down ExchangeManager will cause a asse...

[todo]

connectedhomeip/src/controller/CHIPDeviceControllerFactory.cpp

Lines 238 to 248 in 1a844e0

	// TODO(#6668): Some exchange has leak, shutting down ExchangeManager will cause a assert fail.
	// if (mExchangeMgr != nullptr)
	// {
	// mExchangeMgr->Shutdown();
	// }
	if (mSessionMgr != nullptr)
	{
	mSessionMgr->Shutdown();
	}
	mSystemLayer = nullptr;

---

This issue was generated by todo based on a TODO comment in 1a844e0 when #9872 was merged. cc @sagar-apple.

[sagar-apple]

duplicate of #6668