8355240: Remove unused Import in StringUTF16

Reviewed-by: rgiulietti

Author: wenshao

src/java.base/share/classes/java/lang/StringUTF16.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -39,7 +39,6 @@
 import jdk.internal.vm.annotation.IntrinsicCandidate;
 
 import static java.lang.String.UTF16;
-import static java.lang.String.LATIN1;
 
 final class StringUTF16 {