docs: remove tsconfig update

Not needed after variant() api for arbitrary variants

Author: kavinvalli

site/pages/docs/installation.mdx

@@ -104,20 +104,4 @@ module.exports = {
   },
 };
 ```
-
-### Edit tsconfig.json
-
-{' '}
-<br />
-This is optional, but we recommend you do this to fix [this
-issue](https://twitter.com/Mokshit06/status/1620812678687248384).
-
-```json filename="tsconfig.json"
-{
-  "compilerOptions": {
-    "noPropertyAccessFromIndexSignature": true
-  }
-}
-```
-
 </Steps>