docs(fix): remove duplification

docs/docs/scripts/overview.md

@@ -63,77 +63,6 @@ So want to write a file in the `http` directory, you can use a relative path:
 const fs = require("fs");
 fs.writeFileSync("../http/my-file.txt", "Hello, world!");
 ```
-
-## Pre-request
-
-```http title="./pre-request-example.http"
-# @name REQUEST_ONE
-< {%
-  var crypto = require('crypto');
-  var fs = require('fs');
-  var TOKEN = fs.readFileSync('TOKEN.txt', 'utf8').trim();
-  request.variables.set('GORILLA', TOKEN);
-  request.variables.set('PASSWORD', crypto.randomBytes(16).toString('hex'));
-%}
-< ./pre-request.js
-POST https://httpbin.org/post HTTP/1.1
-Accept: application/json
-Content-Type: application/json
-Authorization: Bearer Foo:bar
-
-{
-  "token": "{{GORILLA}}",
-  "password": "{{PASSWORD}}",
-  "deep": {
-    "nested": [
-      {
-        "key": "foo"
-      },
-      {
-        "key": "{{BONOBO}}"
-      }
-    ]
-  }
-}
-
-###
-
-# @name REQUEST_TWO
-POST https://httpbin.org/post HTTP/1.1
-accept: application/json
-content-type: application/json
-
-{
-  "token": "{{REQUEST_ONE.response.body.$.json.token}}",
-  "nested": "{{REQUEST_ONE.response.body.$.json.deep.nested[1].key}}",
-  "gorilla": "{{GORILLA}}"
-}
-```
-
-:::tip
-
-Variables set via `request.variables.set` are only available in the current request.
-
-:::
-
-```javascript title="./pre-request.js"
-client.global.set("BONOBO", "bar");
-```
-
-:::tip
-
-Variables set via `client.global.set` are available in all requests and
-persist between neovim restarts.
-
-To clear a global variable,
-run [`lua require('kulala').scripts_clear_global('BONOBO')`](../usage/public-methods#scripts_clear_global).
-
-:::
-
-```plaintext title="./TOKEN.txt"
-THIS_IS_SOME_TOKEN_VALUE_123
-```
-
 ## Pre-request
 
 ```http title="./pre-request-example.http"