Revert "CHANGE: reenable UI tests on IOS"

This reverts commit 63a5850.

Author: jamesmcgill

Assets/Tests/InputSystem/Plugins/UITests.cs

@@ -266,6 +266,9 @@ public void UI_InputModuleHasDefaultActions()
     //       of to the previous click).
     [UnityTest]
     [Category("UI")]
+#if UNITY_IOS || UNITY_TVOS
+    [Ignore("Failing on iOS https://jira.unity3d.com/browse/ISX-448")]
+#endif
     // All pointer input goes through a single code path. Goes for Pointer-derived devices as well as for TrackedDevice input but
     // also any other input that can deliver point and click functionality.
     //
@@ -1179,6 +1182,9 @@ public IEnumerator UI_CanReceivePointerExitsWhenChangingUIStateWithoutMovingPoin
     [TestCase(UIPointerBehavior.SingleUnifiedPointer, ExpectedResult = -1)]
     [TestCase(UIPointerBehavior.AllPointersAsIs, ExpectedResult = -1)]
     [TestCase(UIPointerBehavior.SingleMouseOrPenButMultiTouchAndTrack, ExpectedResult = -1)]
+#if UNITY_IOS || UNITY_TVOS
+    [Ignore("Failing on iOS https://jira.unity3d.com/browse/ISX-448")]
+#endif
     public IEnumerator UI_CanDriveUIFromMultiplePointers(UIPointerBehavior pointerBehavior)
     {
         InputSystem.RegisterLayout(kTrackedDeviceWithButton);
@@ -1720,6 +1726,9 @@ public IEnumerator UI_CanUseTouchSimulationWithUI()
         }
     }
 
+    #if UNITY_IOS || UNITY_TVOS
+    [Ignore("Failing on iOS https://jira.unity3d.com/browse/ISX-448")]
+    #endif
     [UnityTest]
     [Category("UI")]
     public IEnumerator UI_CanDriveUIFromMultipleTrackedDevices()
@@ -2179,6 +2188,9 @@ public IEnumerator UI_CallingIsPointerOverGameObject_FromActionCallback_ResultsI
         yield return null;
     }
 
+#if UNITY_IOS || UNITY_TVOS
+    [Ignore("Failing on iOS https://jira.unity3d.com/browse/ISX-448")]
+#endif
     [UnityTest]
     [Category("UI")]
     public IEnumerator UI_CanGetRaycastResultMatchingEvent()
@@ -2239,6 +2251,9 @@ public IEnumerator UI_CanGetRaycastResultMatchingEvent()
         Assert.That(raycastResult.isValid, Is.False);
     }
 
+    #if UNITY_IOS || UNITY_TVOS
+    [Ignore("Failing on iOS https://jira.unity3d.com/browse/ISX-448")]
+    #endif
     [UnityTest]
     [Category("UI")]
     public IEnumerator UI_XRTrackingOriginTransformModifiesTrackedPointers()