roll back a temporary fix that we allegedly no longer need in 2022.3 LTS (case UUM-10774)

Author: K-Tone

Packages/com.unity.inputsystem/InputSystem/Editor/DeviceSimulator/InputSystemPlugin.cs

@@ -12,7 +12,6 @@ internal class InputSystemPlugin : DeviceSimulatorPlugin
         internal Touchscreen SimulatorTouchscreen;
 
         private bool m_InputSystemEnabled;
-        private bool m_Quitting;
         private List<InputDevice> m_DisabledDevices;
 
         public override string title => "Input System";
@@ -22,9 +21,6 @@ public override void OnCreate()
             m_InputSystemEnabled = EditorPlayerSettingHelpers.newSystemBackendsEnabled;
             if (m_InputSystemEnabled)
             {
-                // Monitor whether the editor is quitting to avoid risking unsafe EnableDevice while quitting
-                UnityEditor.EditorApplication.quitting += OnQuitting;
-
                 m_DisabledDevices = new List<InputDevice>();
 
                 // deviceSimulator is never null when the plugin is instantiated by a simulator window, but it can be null during unit tests
@@ -99,27 +95,15 @@ public override void OnDestroy()
                     deviceSimulator.touchScreenInput -= OnTouchEvent;
                 InputSystem.onDeviceChange -= OnDeviceChange;
 
-                UnityEditor.EditorApplication.quitting -= OnQuitting;
-
                 if (SimulatorTouchscreen != null)
                     InputSystem.RemoveDevice(SimulatorTouchscreen);
                 foreach (var device in m_DisabledDevices)
                 {
-                    // Note that m_Quitting is used here to mitigate the problem reported in issue tracker:
-                    // https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-10774.
-                    // Enabling a device will call into IOCTL of backend which will (may) be destroyed prior
-                    // to this callback on Unity version <= 2022.2. This is not a fix for the actual problem
-                    // of shutdown order but a package fix to mitigate this problem.
-                    if (device.added && !m_Quitting)
+                    if (device.added)
                         InputSystem.EnableDevice(device);
                 }
             }
         }
-
-        private void OnQuitting()
-        {
-            m_Quitting = true;
-        }
     }
 }