Updated changelog

Author: ekcoh

Packages/com.unity.inputsystem/CHANGELOG.md

@@ -29,6 +29,7 @@ however, it has to be formatted properly to pass verification tests.
 - Fixed an issue where `InputSystemUIInputModule.localMultiPlayerRoot` could not be set to `null` when using `MultiplayerEventSystem`. [ISXB-1610](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-1610)
 - Fixed an issue in `Keyboard` where the sub-script operator would return a `null` key control for the deprecated key `Key.IMESelected`. Now, an aliased `KeyControl`mapping to the IMESelected bit is returned for compability reasons. It is still strongly advised to not rely on this key since `IMESelected` bit isn't strictly a key and will be removed from the `Key` enumeration type in a future major revision. [ISXB-1541](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-1541).
 - Fixed an issue in `InputActionReference` where `Set` was not updating the cached action leading to incorrect evaluation of `InputActionReference.action` after first being cached, then set, then read again. This could lead to reference not being reset if set programmatically during play-mode. [ISXB-1584](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-1584).
+- Fixed an issue where `InputActionSetupExtensions.Remove` will result in `NullReferenceException` if the action has no bindings. (ISXB-1688).
 
 ## [1.14.2] - 2025-08-05