Clean up dependencies

node_modules/lodash/_isKeyable.js

@@ -1,15 +0,0 @@
-/**
- * Checks if `value` is suitable for use as unique object key.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
- */
-function isKeyable(value) {
-  var type = typeof value;
-  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
-    ? (value !== '__proto__')
-    : (value === null);
-}
-
-module.exports = isKeyable;