8257237: Cleanup unused imports in the SunJSSE provider implementation

Reviewed-by: wetmore

src/java.base/share/classes/sun/security/ssl/KeyShareExtension.java

@@ -34,11 +34,9 @@ import java.util.Collections;
 import java.util.EnumSet;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.ListIterator;
 import java.util.Locale;
 import java.util.Map;
 import javax.net.ssl.SSLProtocolException;
-import sun.security.ssl.KeyShareExtension.CHKeyShareSpec;
 import sun.security.ssl.NamedGroup.NamedGroupSpec;
 import sun.security.ssl.SSLExtension.ExtensionConsumer;
 import sun.security.ssl.SSLExtension.SSLExtensionSpec;

src/java.base/share/classes/sun/security/ssl/SSLAlgorithmDecomposer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2020, 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
@@ -29,9 +29,7 @@ import java.util.HashSet;
 import java.util.Set;
 import sun.security.ssl.CipherSuite.HashAlg;
 import sun.security.ssl.CipherSuite.KeyExchange;
-import static sun.security.ssl.CipherSuite.KeyExchange.*;
 import sun.security.ssl.CipherSuite.MacAlg;
-import static sun.security.ssl.SSLCipher.*;
 import sun.security.util.AlgorithmDecomposer;
 
 /**

src/java.base/share/classes/sun/security/ssl/SunJSSE.java

@@ -28,7 +28,6 @@ package sun.security.ssl;
 import java.security.*;
 import java.util.*;
 import static sun.security.util.SecurityConstants.PROVIDER_VER;
-import static sun.security.util.SecurityProviderConstants.*;
 
 /**
  * The JSSE provider.