Polish reactor-ipc/netty contracts

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

@@ -111,7 +111,7 @@ public class ReactorClientHttpRequest extends AbstractClientHttpRequest {
 							})
 							.after(() -> {
 								if (body != null) {
-									return channel.sendBody(body);
+									return channel.send(body);
 								}
 								else {
 									return channel.sendHeaders();

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

@@ -50,7 +50,7 @@ public class ReactorClientHttpResponse implements ClientHttpResponse {
 
 	@Override
 	public Flux<DataBuffer> getBody() {
-		return channel.receiveBody().map(b -> allocator.wrap(b.byteBuffer()));
+		return channel.receive().map(b -> allocator.wrap(b.byteBuffer()));
 	}
 
 	@Override