Second attempt to fix hanging RPCS3 process

Now fix exit logic a bit.
Remove Init() call from Stop().
Remove Stop() call from Quit().

rpcs3/Emu/System.cpp

@@ -1963,13 +1963,11 @@ void Emulator::Stop(bool restart)
 	}
 
 	m_force_boot = false;
-	Init();
 }
 
 bool Emulator::Quit(bool force_quit)
 {
 	m_force_boot = false;
-	Emu.Stop();
 
 	// Deinitialize object manager to prevent any hanging objects at program exit
 	*g_fxo = {};

rpcs3/rpcs3qt/main_window.cpp

@@ -2227,6 +2227,7 @@ void main_window::closeEvent(QCloseEvent* closeEvent)
 	}
 
 	// Cleanly stop and quit the emulator.
+	Emu.Stop();
 	Emu.Quit(true);
 }