Delete unused import in ExpressionLanguageScenarioTests

See gh-24586

spring-expression/src/test/java/org/springframework/expression/spel/ExpressionLanguageScenarioTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -17,7 +17,6 @@
 package org.springframework.expression.spel;
 
 import java.awt.Color;
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
@@ -312,4 +311,5 @@ public class ExpressionLanguageScenarioTests extends AbstractExpressionTests {
 		}
 
 	}
+
 }