Refine KotlinDetector usages and implementation

This commit refines KotlinDetector usages and implementation in order
to remove preliminary KotlinDetector#isKotlinReflectPresent invocations
and to ensure that KotlinDetector methods are implemented safely and
efficiently for such use case.

Closes gh-34275

spring-expression/src/main/java/org/springframework/expression/spel/support/ReflectivePropertyAccessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -558,8 +558,7 @@ public class ReflectivePropertyAccessor implements PropertyAccessor {
 
 	private static boolean isKotlinProperty(Method method, String methodSuffix) {
 		Class<?> clazz = method.getDeclaringClass();
-		return KotlinDetector.isKotlinReflectPresent() &&
-				KotlinDetector.isKotlinType(clazz) &&
+		return KotlinDetector.isKotlinType(clazz) &&
 				KotlinDelegate.isKotlinProperty(method, methodSuffix);
 	}