Revert "inspector: rewrite inspector test helper"

This reverts commit 2296b67.

That commit was landed without a green CI and is failing on Windows.

Ref: nodejs#14460

test/common/README.md

@@ -99,15 +99,6 @@ Tests whether `name` and `expected` are part of a raised warning.
 
 Checks if `pathname` exists
 
-### fires(promise, [error], [timeoutMs])
-* promise [<Promise]
-* error [<String] default = 'timeout'
-* timeoutMs [<Number] default = 100
-
-Returns a new promise that will propagate `promise` resolution or rejection if
-that happens within the `timeoutMs` timespan, or rejects with `error` as
-a reason otherwise.
-
 ### fixturesDir
 * return [<String>]
 

test/common/index.js

@@ -814,32 +814,6 @@ function restoreWritable(name) {
   delete process[name].writeTimes;
 }
 
-function onResolvedOrRejected(promise, callback) {
-  return promise.then((result) => {
-    callback();
-    return result;
-  }, (error) => {
-    callback();
-    throw error;
-  });
-}
-
-function timeoutPromise(error, timeoutMs) {
-  let clearCallback = null;
-  let done = false;
-  const promise = onResolvedOrRejected(new Promise((resolve, reject) => {
-    const timeout = setTimeout(() => reject(error), timeoutMs);
-    clearCallback = () => {
-      if (done)
-        return;
-      clearTimeout(timeout);
-      resolve();
-    };
-  }), () => done = true);
-  promise.clear = clearCallback;
-  return promise;
-}
-
 exports.hijackStdout = hijackStdWritable.bind(null, 'stdout');
 exports.hijackStderr = hijackStdWritable.bind(null, 'stderr');
 exports.restoreStdout = restoreWritable.bind(null, 'stdout');
@@ -853,19 +827,3 @@ exports.firstInvalidFD = function firstInvalidFD() {
   } catch (e) {}
   return fd;
 };
-
-exports.fires = function fires(promise, error, timeoutMs) {
-  if (!timeoutMs && util.isNumber(error)) {
-    timeoutMs = error;
-    error = null;
-  }
-  if (!error)
-    error = 'timeout';
-  if (!timeoutMs)
-    timeoutMs = 100;
-  const timeout = timeoutPromise(error, timeoutMs);
-  return Promise.race([
-    onResolvedOrRejected(promise, () => timeout.clear()),
-    timeout
-  ]);
-};