doc: remove loader hooks from unsupported features

PR-URL: nodejs/node#16465
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Author: teppeis

doc/api/esm.md

@@ -43,7 +43,6 @@ points into ESM graphs at run time.
 | `require('./foo.mjs')` | ES Modules have differing resolution and timing, use language standard `import()` |
 | `import()` | pending newer V8 release used in Node.js |
 | `import.meta` | pending V8 implementation |
-| Loader Hooks | pending Node.js EP creation/consensus |
 
 ## Notable differences between `import` and `require`