docs: remove retired site resources (#10817)

Co-authored-by: Douwe M Osinga <douwe@sidewalklabs.com>

documentation/docs/guides/recipes/index.mdx

@@ -67,14 +67,9 @@ import VideoCarousel from '@site/src/components/VideoCarousel';
 </div>
 
 <div className={styles.categorySection}>
-  <h2 className={styles.categoryTitle}>🛠️ Tools & Generators</h2>
+  <h2 className={styles.categoryTitle}>🛠️ Recipe Cookbook</h2>
   <div className={styles.cardGrid}>
-    <Card 
-      title="Recipe Generator"
-      description="Interactive tool that creates a shareable goose recipe URL that others can use to launch a session with your predefined settings."
-      link="/recipe-generator"
-    />
-    <Card 
+    <Card
       title="Recipe Cookbook"
       description="Browse our collection of ready-to-use recipes. Find and adapt recipes for common development scenarios."
       link="/recipes"

documentation/docs/guides/recipes/session-recipes.md

@@ -159,25 +159,6 @@ You can turn your current goose session into a reusable recipe that includes the
    See the [Recipe Reference Guide](/docs/guides/recipes/recipe-reference) for more information about recipe fields. 
 
    </TabItem> 
-
-
-  <TabItem value="generator" label="Recipe Generator">
-    Use the online [Recipe Generator](https://goose-docs.ai/recipe-generator) tool to create a recipe. First choose your preferred format:
-
-    - **URL Format**: Generates a shareable link that opens a session in goose Desktop
-    - **YAML Format**: Generates YAML content that you can save to file and then run in goose CLI
-
-    Then fill out the recipe form by providing:
-      - A **title** for the recipe
-      - A **description**
-      - A set of **instructions** for the recipe.
-      - An optional initial **prompt**:
-        - In the Desktop, the prompt displays in the chat box.
-        - In the CLI, the prompt provides the initial message to run. Note that a prompt is required to run the recipe in headless (non-interactive) mode.
-      - A set of optional **activities** to display in the Desktop.
-      - YAML format only: Optional **author** contact information and **extensions** the recipe uses.
-
-  </TabItem>
 </Tabs>
 
 :::tip Customize Recipe Generation