Revert "docs: JSONparse option for json generator(#7577)"

This reverts commit 665ad75.

Author: snitin315

src/content/configuration/module.mdx

@@ -188,11 +188,6 @@ module.exports = {
       'css/module': {
         // ditto
       },
-      json: {
-        // Generator options for json modules
-        // Use `JSON.parse` when the JSON string is longer than 20 characters.
-        JSONParse: true,
-      },
       // others…
     },
   },