Revert "test: add test for missing `close`/`finish` event"

This reverts commit 9436a860cb.

test/parallel/test-http-response-close-event-race.js

@@ -1,90 +0,0 @@
-var common = require('../common');
-var assert = require('assert');
-var http = require('http');
-
-var clientRequest = null;
-var eventCount = 0;
-var testTickCount = 3;
-
-var server = http.createServer(function(req, res) {
-  console.log('server: request');
-
-  res.on('finish', function() {
-    console.log('server: response finish');
-    eventCount++;
-  });
-  res.on('close', function() {
-    console.log('server: response close');
-    eventCount++;
-  });
-
-  console.log('client: aborting request');
-  clientRequest.abort();
-
-  var ticks = 0;
-  function tick() {
-    console.log('server: tick ' + ticks +
-                (req.connection.destroyed ? ' (connection destroyed!)' : ''));
-
-    if (ticks < testTickCount) {
-      ticks++;
-      setImmediate(tick);
-    } else {
-      sendResponse();
-    }
-  }
-  tick();
-
-  function sendResponse() {
-    console.log('server: sending response');
-    res.writeHead(200, {'Content-Type': 'text/plain'});
-    res.end('Response\n');
-    console.log('server: res.end() returned');
-
-    handleResponseEnd();
-  }
-});
-
-server.on('listening', function() {
-  console.log('server: listening on port ' + common.PORT);
-  console.log('-----------------------------------------------------');
-  startRequest();
-});
-
-server.on('connection', function(connection) {
-  console.log('server: connection');
-  connection.on('close', function() {
-    console.log('server: connection close');
-  });
-});
-
-server.on('close', function() {
-  console.log('server: close');
-});
-
-server.listen(common.PORT);
-
-function startRequest() {
-  console.log('client: starting request - testing with %d ticks after abort()',
-              testTickCount);
-  eventCount = 0;
-
-  var options = {port: common.PORT, path: '/'};
-  clientRequest = http.get(options, function() {});
-  clientRequest.on('error', function() {});
-}
-
-function handleResponseEnd() {
-  setImmediate(function() {
-    setImmediate(function() {
-      assert.equal(eventCount, 1);
-
-      if (testTickCount > 0) {
-        testTickCount--;
-        startRequest();
-      } else {
-        server.close();
-      }
-    });
-  });
-}