Remove outdated Spring version mentions

Close gh-35696

spring-web/src/main/java/org/springframework/http/client/HttpComponentsClientHttpRequestFactory.java

@@ -54,7 +54,7 @@ import org.springframework.util.Assert;
  * <p>Allows to use a pre-configured {@link HttpClient} instance -
  * potentially with authentication, HTTP connection pooling, etc.
  *
- * <p><b>NOTE:</b> Requires Apache HttpComponents 5.1 or higher, as of Spring 6.0.
+ * <p><b>NOTE:</b> Requires Apache HttpComponents 5.1 or higher.
  *
  * @author Oleg Kalnichevski
  * @author Arjen Poutsma

spring-web/src/main/java/org/springframework/http/converter/protobuf/ProtobufHttpMessageConverter.java

@@ -57,7 +57,7 @@ import static org.springframework.http.MediaType.TEXT_PLAIN;
  * The {@code "application/json"} format is also supported with the {@code "com.google.protobuf:protobuf-java-util"}
  * dependency. See {@link ProtobufJsonFormatHttpMessageConverter} for a configurable variant.
  *
- * <p>This converter requires Protobuf 3 or higher as of Spring Framework 6.1.
+ * <p>This converter requires Protobuf 3 or higher.
  *
  * @author Alex Antonov
  * @author Brian Clozel

spring-web/src/main/java/org/springframework/web/context/request/FacesRequestAttributes.java

@@ -40,7 +40,7 @@ import org.springframework.web.util.WebUtils;
  * callbacks, consider defining a Spring {@link RequestContextListener} in your
  * {@code web.xml}.
  *
- * <p>Requires JSF 2.0 or higher, as of Spring 4.0.
+ * <p>Requires JSF 2.0 or higher.
  *
  * @author Juergen Hoeller
  * @since 2.5.2

spring-web/src/main/java/org/springframework/web/context/request/FacesWebRequest.java

@@ -30,7 +30,7 @@ import org.springframework.util.StringUtils;
 /**
  * {@link WebRequest} adapter for a JSF {@link jakarta.faces.context.FacesContext}.
  *
- * <p>Requires JSF 2.0 or higher, as of Spring 4.0.
+ * <p>Requires JSF 2.0 or higher.
  *
  * @author Juergen Hoeller
  * @since 2.5.2