Remove superfluous xo rules

Author: wooorm

index.js

@@ -13,7 +13,7 @@ module.exports = fromText
 // for all literals we set the `value` of the given node the the given value.
 function fromText(node, value) {
   var fn = 'children' in node ? setParent : setLiteral
-  var val = value == null ? '' : String(value)
+  var val = value === null || value === undefined ? '' : String(value)
 
   fn(node, val)
 

package.json

@@ -57,16 +57,6 @@
   "xo": {
     "prettier": true,
     "esnext": false,
-    "rules": {
-      "no-eq-null": "off",
-      "eqeqeq": [
-        "error",
-        "always",
-        {
-          "null": "ignore"
-        }
-      ]
-    },
     "ignores": [
       "hast-util-from-text.js"
     ]