test: remove unused config

process.maxTickDepth was removed in v0.12 a whole while ago and was
mostly removed from our code base. There are still some places it was
left in old benchmarks and tests.

This PR removes setting the value in those tests and
benchmarks.

PR-URL:
Reviewed-By:

benchmark/process/next-tick-depth-args.js

@@ -5,8 +5,6 @@ const bench = common.createBenchmark(main, {
   n: [12e6]
 });
 
-process.maxTickDepth = Infinity;
-
 function main({ n }) {
   let counter = n;
   function cb4(arg1, arg2, arg3, arg4) {

benchmark/process/next-tick-depth.js

@@ -4,8 +4,6 @@ const bench = common.createBenchmark(main, {
   n: [12e6]
 });
 
-process.maxTickDepth = Infinity;
-
 function main({ n }) {
   let counter = n;
   bench.start();

test/parallel/test-next-tick-intentional-starvation.js

@@ -23,12 +23,8 @@
 require('../common');
 const assert = require('assert');
 
-// this is the inverse of test-next-tick-starvation.
-// it verifies that process.nextTick will *always* come before other
-// events, up to the limit of the process.maxTickDepth value.
-
-// WARNING: unsafe!
-process.maxTickDepth = Infinity;
+// this is the inverse of test-next-tick-starvation. it verifies
+// that process.nextTick will *always* come before other events
 
 let ran = false;
 let starved = false;

test/parallel/test-stream2-read-sync-stack.js

@@ -22,13 +22,13 @@
 'use strict';
 const common = require('../common');
 const Readable = require('stream').Readable;
+
+// This tests synchronous read callbacks and verifies that even if they nest
+// heavily the process handles it without an error
+
 const r = new Readable();
 const N = 256 * 1024;
 
-// Go ahead and allow the pathological case for this test.
-// Yes, it's an infinite loop, that's the point.
-process.maxTickDepth = N + 2;
-
 let reads = 0;
 r._read = function(n) {
   const chunk = reads++ === N ? null : Buffer.allocUnsafe(1);

test/sequential/test-next-tick-error-spin.js

@@ -39,7 +39,6 @@ if (process.argv[2] !== 'child') {
 
   const domain = require('domain');
   const d = domain.create();
-  process.maxTickDepth = 10;
 
   // in the error handler, we trigger several MakeCallback events
   d.on('error', function() {