Remove Joda-Time support

Closes gh-27426

Author: jhoeller

spring-context/src/main/java/org/springframework/format/annotation/DateTimeFormat.java

@@ -66,7 +66,6 @@
  * @author Sam Brannen
  * @since 3.0
  * @see java.time.format.DateTimeFormatter
- * @see org.joda.time.format.DateTimeFormat
  */
 @Documented
 @Retention(RetentionPolicy.RUNTIME)

spring-context/src/main/java/org/springframework/format/datetime/DateFormatterRegistrar.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -38,7 +38,6 @@
  * @author Phillip Webb
  * @since 3.2
  * @see org.springframework.format.datetime.standard.DateTimeFormatterRegistrar
- * @see org.springframework.format.datetime.joda.JodaTimeFormatterRegistrar
  * @see FormatterRegistrar#registerFormatters
  */
 public class DateFormatterRegistrar implements FormatterRegistrar {

spring-context/src/main/java/org/springframework/format/datetime/DateTimeFormatAnnotationFormatterFactory.java

@@ -38,7 +38,6 @@
  * @author Phillip Webb
  * @author Sam Brannen
  * @since 3.2
- * @see org.springframework.format.datetime.joda.JodaDateTimeFormatAnnotationFormatterFactory
  */
 public class DateTimeFormatAnnotationFormatterFactory  extends EmbeddedValueResolutionSupport
 		implements AnnotationFormatterFactory<DateTimeFormat> {