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) {