Remove performance-now dependency

Author: codenirvana

package.json

@@ -38,7 +38,6 @@
     "json-stringify-safe": "~5.0.1",
     "mime-types": "^2.1.35",
     "oauth-sign": "~0.9.0",
-    "performance-now": "^2.1.0",
     "qs": "~6.5.3",
     "safe-buffer": "^5.1.2",
     "stream-length": "^1.0.2",

request.js

@@ -32,14 +32,14 @@ var hawk = require('./lib/hawk')
 var Multipart = require('./lib/multipart').Multipart
 var Redirect = require('./lib/redirect').Redirect
 var Tunnel = require('./lib/tunnel').Tunnel
-var now = require('performance-now')
 var Buffer = require('safe-buffer').Buffer
 var inflate = require('./lib/inflate')
 var urlParse = require('./lib/url-parse')
 var safeStringify = helpers.safeStringify
 var isReadStream = helpers.isReadStream
 var toBase64 = helpers.toBase64
 var defer = helpers.defer
+var now = performance.now
 var copy = helpers.copy
 var version = helpers.version
 var SizeTrackerStream = helpers.SizeTrackerStream