Use WHATWG URL API instead of url.parse() (#4852)

* replace url.parse with new whatwg url api

* remove comments

* use const instead of var

Co-authored-by: Jay <jasonsaayman@gmail.com>

test/unit/adapters/http.js

@@ -706,7 +706,7 @@ describe('supports http with nodejs', function () {
     }).listen(socketName, function () {
       axios({
         socketPath: socketName,
-        url: '/'
+        url: 'http://localhost:4444/socket'
       })
         .then(function (resp) {
           assert.equal(resp.status, 200);