test: remove disabled eio race test

The project does not use libeio anymore. Remove disabled libeio-specific
test.

PR-URL: https://github.com/nodejs/node/pull/7083
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

test/disabled/test-eio-race.js

@@ -1,64 +0,0 @@
-'use strict';
-var common = require('../common');
-var assert = require('assert');
-
-var count = 100;
-var fs = require('fs');
-
-// person.jpg is 57kb. We just need some file that is sufficiently large.
-var filename = require('path').join(common.fixturesDir, 'person.jpg');
-
-function tryToKillEventLoop() {
-  console.log('trying to kill event loop ...');
-
-  fs.stat(__filename, function(err) {
-    if (err) {
-      throw new Exception('first fs.stat failed');
-    } else {
-      fs.stat(__filename, function(err) {
-        if (err) {
-          throw new Exception('second fs.stat failed');
-        } else {
-          console.log('could not kill event loop, retrying...');
-
-          setTimeout(function() {
-            if (--count) {
-              tryToKillEventLoop();
-            } else {
-              console.log('done trying to kill event loop');
-              process.exit(0);
-            }
-          }, 1);
-        }
-      });
-    }
-  });
-}
-
-// Generate a lot of thread pool events
-var pos = 0;
-fs.open(filename, 'r', 0o666, function(err, fd) {
-  if (err) throw err;
-
-  function readChunk() {
-    fs.read(fd, 1024, 0, 'binary', function(err, chunk, bytesRead) {
-      if (err) throw err;
-      if (chunk) {
-        pos += bytesRead;
-        //console.log(pos);
-        readChunk();
-      } else {
-        fs.closeSync(fd);
-        throw new Exception("Shouldn't get EOF");
-      }
-    });
-  }
-  readChunk();
-});
-
-tryToKillEventLoop();
-
-process.on('exit', function() {
-  console.log('done with test');
-  assert.ok(pos > 10000);
-});