url: remove an eslint-disable comment

Remove an eslint-disable comment by using a strict comparison
instead of a Boolean cast.

PR-URL: #24995
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>

Author: cjihrig

lib/internal/url.js

@@ -771,8 +771,7 @@ function parseParams(qs) {
       if (code === CHAR_PERCENT) {
         encodeCheck = 1;
       } else if (encodeCheck > 0) {
-        // eslint-disable-next-line no-extra-boolean-cast
-        if (!!isHexTable[code]) {
+        if (isHexTable[code] === 1) {
           if (++encodeCheck === 3) {
             querystring = require('querystring');
             encoded = true;