core: hle: kernel: Remove server session tracking.

- These are now allocated/managed by emulated memory, so we do not need to track and free them on shutdown.

src/core/hle/kernel/hle_ipc.cpp

@@ -53,9 +53,6 @@ bool SessionRequestManager::HasSessionRequestHandler(const HLERequestContext& co
 
 void SessionRequestHandler::ClientConnected(KServerSession* session) {
     session->ClientConnected(shared_from_this());
-
-    // Ensure our server session is tracked globally.
-    kernel.RegisterServerSession(session);
 }
 
 void SessionRequestHandler::ClientDisconnected(KServerSession* session) {

src/core/hle/kernel/k_server_session.cpp

@@ -27,10 +27,7 @@ namespace Kernel {
 
 KServerSession::KServerSession(KernelCore& kernel_) : KSynchronizationObject{kernel_} {}
 
-KServerSession::~KServerSession() {
+KServerSession::~KServerSession() = default;
-    // Ensure that the global list tracking server sessions does not hold on to a reference.
-    kernel.UnregisterServerSession(this);
-}
 
 void KServerSession::Initialize(KSession* parent_session_, std::string&& name_,
                                 std::shared_ptr<SessionRequestManager> manager_) {

src/core/hle/kernel/kernel.cpp

@@ -107,16 +107,6 @@ struct KernelCore::Impl {
         for (auto* server_port : server_ports_) {
             server_port->Close();
         }
-        // Close all open server sessions.
-        std::unordered_set<KServerSession*> server_sessions_;
-        {
-            std::lock_guard lk(server_sessions_lock);
-            server_sessions_ = server_sessions;
-            server_sessions.clear();
-        }
-        for (auto* server_session : server_sessions_) {
-            server_session->Close();
-        }
 
         // Ensure that the object list container is finalized and properly shutdown.
         object_list_container.Finalize();
@@ -697,7 +687,6 @@ struct KernelCore::Impl {
     }
 
     std::mutex server_ports_lock;
-    std::mutex server_sessions_lock;
     std::mutex registered_objects_lock;
     std::mutex registered_in_use_objects_lock;
 
@@ -728,7 +717,6 @@ struct KernelCore::Impl {
     std::unordered_map<std::string, ServiceInterfaceFactory> service_interface_factory;
     NamedPortTable named_ports;
     std::unordered_set<KServerPort*> server_ports;
-    std::unordered_set<KServerSession*> server_sessions;
     std::unordered_set<KAutoObject*> registered_objects;
     std::unordered_set<KAutoObject*> registered_in_use_objects;
 
@@ -932,16 +920,6 @@ KClientPort* KernelCore::CreateNamedServicePort(std::string name) {
     return impl->CreateNamedServicePort(std::move(name));
 }
 
-void KernelCore::RegisterServerSession(KServerSession* server_session) {
-    std::lock_guard lk(impl->server_sessions_lock);
-    impl->server_sessions.insert(server_session);
-}
-
-void KernelCore::UnregisterServerSession(KServerSession* server_session) {
-    std::lock_guard lk(impl->server_sessions_lock);
-    impl->server_sessions.erase(server_session);
-}
-
 void KernelCore::RegisterKernelObject(KAutoObject* object) {
     std::lock_guard lk(impl->registered_objects_lock);
     impl->registered_objects.insert(object);

src/core/hle/kernel/kernel.h

@@ -196,14 +196,6 @@ public:
     /// Opens a port to a service previously registered with RegisterNamedService.
     KClientPort* CreateNamedServicePort(std::string name);
 
-    /// Registers a server session with the gobal emulation state, to be freed on shutdown. This is
-    /// necessary because we do not emulate processes for HLE sessions.
-    void RegisterServerSession(KServerSession* server_session);
-
-    /// Unregisters a server session previously registered with RegisterServerSession when it was
-    /// destroyed during the current emulation session.
-    void UnregisterServerSession(KServerSession* server_session);
-
     /// Registers all kernel objects with the global emulation state, this is purely for tracking
     /// leaks after emulation has been shutdown.
     void RegisterKernelObject(KAutoObject* object);