revert "mouseExited" parameter: it was extremely unreliable anyway

GitOrigin-RevId: fe89a162ddfaae6d277a635b832358fcedfa5265

platform/lang-impl/src/com/intellij/codeInsight/hints/presentation/ChangeOnHoverPresentation.kt

@@ -10,10 +10,9 @@ import java.awt.event.MouseEvent
  * @param onHoverPredicate predicate, that considers state is hovered (additional to fact, that it is in bounds)
  */
 class ChangeOnHoverPresentation(
-  private val noHover: InlayPresentation,
+  val noHover: InlayPresentation,
   private val hover: () -> InlayPresentation,
-  private val onHoverPredicate: (MouseEvent) -> Boolean = { true },
-  private val onMouseExited: () -> Unit = {}
+  private val onHoverPredicate: (MouseEvent) -> Boolean = { true }
 ) : StatefulPresentation<ChangeOnHoverPresentation.State>(State(false), STATE_MARK) {
   override fun getPresentation(): InlayPresentation = when (state.isInside) {
     true -> hover()
@@ -43,7 +42,6 @@ class ChangeOnHoverPresentation(
     if (state.isInside) {
       state = State(false)
     }
-    onMouseExited()
   }
 
   data class State(val isInside: Boolean)

platform/lang-impl/src/com/intellij/codeInsight/hints/presentation/PresentationFactory.kt

@@ -245,9 +245,8 @@ class PresentationFactory(private val editor: EditorImpl) {
   fun changeOnHover(
     base: InlayPresentation,
     onHover: () -> InlayPresentation,
-    onHoverPredicate: (MouseEvent) -> Boolean = { true },
-    onMouseExited: () -> Unit = {}
-  ): InlayPresentation = ChangeOnHoverPresentation(base, onHover, onHoverPredicate, onMouseExited)
+    onHoverPredicate: (MouseEvent) -> Boolean = { true }
+  ): InlayPresentation = ChangeOnHoverPresentation(base, onHover, onHoverPredicate)
 
   @Contract(pure = true)
   fun reference(base: InlayPresentation, onClickAction: () -> Unit): InlayPresentation {