http2: remove unnecessary event handlers

PR-URL: #17328
Fixes: #15303
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Sebastiaan Deckers <sebdeckers83@gmail.com>

lib/internal/http2/compat.js

@@ -122,20 +122,6 @@ function onStreamDrain() {
     response.emit('drain');
 }
 
-// TODO Http2Stream does not emit 'close'
-function onStreamClosedRequest() {
-  const request = this[kRequest];
-  if (request !== undefined)
-    request.push(null);
-}
-
-// TODO Http2Stream does not emit 'close'
-function onStreamClosedResponse() {
-  const response = this[kResponse];
-  if (response !== undefined)
-    response.emit('finish');
-}
-
 function onStreamAbortedRequest() {
   const request = this[kRequest];
   if (request !== undefined && request[kState].closed === false) {
@@ -247,7 +233,6 @@ class Http2ServerRequest extends Readable {
     stream.on('trailers', onStreamTrailers);
     stream.on('end', onStreamEnd);
     stream.on('error', onStreamError);
-    stream.on('close', onStreamClosedRequest);
     stream.on('aborted', onStreamAbortedRequest);
     const onfinish = this[kFinish].bind(this);
     stream.on('close', onfinish);
@@ -380,7 +365,6 @@ class Http2ServerResponse extends Stream {
     stream[kResponse] = this;
     this.writable = true;
     stream.on('drain', onStreamDrain);
-    stream.on('close', onStreamClosedResponse);
     stream.on('aborted', onStreamAbortedResponse);
     const onfinish = this[kFinish].bind(this);
     stream.on('close', onfinish);