chore: always use dynamic polyfill for browsers

_data/origin/basic.yml

@@ -42,8 +42,5 @@ lazy-polyfill:
 clipboard:
   js: /assets/lib/clipboard/clipboard.min.js
 
-polyfill:
-  js: /assets/lib/polyfill-v3-es6/polyfill.min.js
-
 mathjax:
   js: /assets/lib/mathjax/tex-chtml.js

_data/origin/cors.yml

@@ -53,8 +53,5 @@ lazy-polyfill:
 clipboard:
   js: https://cdn.jsdelivr.net/npm/clipboard@2.0.11/dist/clipboard.min.js
 
-polyfill:
-  js: https://polyfill.io/v3/polyfill.min.js?features=es6
-
 mathjax:
   js: https://cdn.jsdelivr.net/npm/mathjax@3.2.2/es5/tex-chtml.js

_includes/js-selector.html

@@ -87,7 +87,7 @@
       }
     };
   </script>
-  <script src="{{ site.data.origin[type].polyfill.js | relative_url }}"></script>
+  <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
   <script id="MathJax-script" async src="{{ site.data.origin[type].mathjax.js | relative_url }}"></script>
 {% endif %}