test: remove unused parameters

Backport-PR-URL: #19447
PR-URL: #14968
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Kunal Pathak <kunal.pathak@microsoft.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: David Cai <davidcai1993@yahoo.com>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/addons-napi/test_async/test.js

@@ -9,7 +9,7 @@ const testException = 'test_async_cb_exception';
 // Exception thrown from async completion callback.
 // (Tested in a spawned process because the exception is fatal.)
 if (process.argv[2] === 'child') {
-  test_async.Test(1, common.mustCall(function(err, val) {
+  test_async.Test(1, common.mustCall(function() {
     throw new Error(testException);
   }));
   return;

test/addons-napi/test_typedarray/test.js

@@ -44,7 +44,7 @@ const arrayTypes = [ Int8Array, Uint8Array, Uint8ClampedArray, Int16Array,
                      Uint16Array, Int32Array, Uint32Array, Float32Array,
                      Float64Array ];
 
-arrayTypes.forEach((currentType, key) => {
+arrayTypes.forEach((currentType) => {
   const template = Reflect.construct(currentType, buffer);
   const theArray = test_typedarray.CreateTypedArray(template, buffer);
 

test/addons/repl-domain-abort/test.js

@@ -25,7 +25,7 @@ const lines = [
 const dInput = new stream.Readable();
 const dOutput = new stream.Writable();
 
-dInput._read = function _read(size) {
+dInput._read = function _read() {
   while (lines.length > 0 && this.push(lines.shift()));
   if (lines.length === 0)
     this.push(null);