Partially revert ea98539.

build/phantom.js

@@ -5,19 +5,10 @@
 const os = require('os');
 const glob = require('glob');
 const async = require('async');
-const isTravis = require('is-travis');
 const qunit = require('node-qunit-phantomjs');
 
 const cpus = os.cpus().length;
-let THREADS;
-
-if (isTravis) {
-    THREADS = cpus;
-} else if (cpus <= 2) {
-    THREADS = 1;
-} else {
-    THREADS = cpus / 2;
-}
+const THREADS = cpus <= 2 ? 1 : cpus / 2;
 
 const ignore = [
     'test/fixtures/jquery/missing.html',

package-lock.json

@@ -2882,12 +2882,6 @@
       "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ=",
       "dev": true
     },
-    "is-travis": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/is-travis/-/is-travis-2.0.0.tgz",
-      "integrity": "sha512-aCZFmQYDeip3yaHVmgooGSmBQ9quOunZl31ugBANy9OgzjwHFZ8Jga6cv4K1xZgNliI0bKD0Axuu1tCQuH9o/A==",
-      "dev": true
-    },
     "is-typedarray": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-typedarray/-/is-typedarray-1.0.0.tgz",

package.json

@@ -46,7 +46,6 @@
     "browserify": "^16.2.2",
     "coveralls": "^3.0.1",
     "eslint": "^4.19.1",
-    "is-travis": "^2.0.0",
     "jquery": "^3.3.1",
     "node-qunit-phantomjs": "^2.0.0",
     "nodeunit": "^0.11.2",