languages/typescript: remove invalid filetypes

`:checkhealth` output:

```
- ⚠️ WARNING Unknown filetype 'typescript.tsx' (Hint: filename extension != filetype).
- ⚠️ WARNING Unknown filetype 'javascript.jsx' (Hint: filename extension != filetype).
```

docs/manual/release-notes/rl-0.9.md

@@ -485,6 +485,8 @@ https://github.com/gorbit99/codewindow.nvim
 - Remove invalid filetypes from ocaml lsp config (`menhir`, `ocamlinterface`,
   `ocamllex` and `reason`).
 - Remove invalid filetypes from html lsp config (`shtml` and `htm`).
+- Remove invalid filetypes from typescript lsp config (`typescript.tsx`,
+  `javascript.jsx`).
 
 [itscrystalline](https://github.com/itscrystalline):
 

modules/plugins/languages/typescript.nix

@@ -175,9 +175,7 @@ in {
             "typescript"
             # TODO: move to a React module
             "typescriptreact"
-            "typescript.tsx"
             "javascriptreact"
-            "javascript.jsx"
             # TODO: move to a JavaScript module
             "javascript"
           ];