Simplify baseCreate.

.internal/baseCreate.js

@@ -1,8 +1,5 @@
 import isObject from './isObject.js';
 
-/** Built-in value references. */
-const objectCreate = Object.create;
-
 /**
  * The base implementation of `create` without support for assigning
  * properties to the created object.
@@ -11,20 +8,8 @@ const objectCreate = Object.create;
  * @param {Object} proto The object to inherit from.
  * @returns {Object} Returns the new object.
  */
-const baseCreate = (() => {
-  function object() {}
-  return proto => {
-    if (!isObject(proto)) {
-      return {};
-    }
-    if (objectCreate) {
-      return objectCreate(proto);
-    }
-    object.prototype = proto;
-    const result = new object;
-    object.prototype = undefined;
-    return result;
-  };
-})();
+function baseCreate(proto) {
+  return isObject(proto) ? Object.create(proto) : {};
+}
 
 export default baseCreate;