Cleanup unused guides and typo (#1429)

Author: ericning-o

examples/o1/Using_chained_calls_for_o1_structured_outputs.ipynb

@@ -129,7 +129,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Let's now do this with [structured outputs.](https://platform.openai.com/docs/guides/structured-outputs). To enable this functionality, we’ll link the `o1-preview` response with a follow-up request to `gpt-4o-mini`, which can effectively process the data returned from the initial o1-preview response."
+    "Let's now do this with [structured outputs](https://platform.openai.com/docs/guides/structured-outputs). To enable this functionality, we’ll link the `o1-preview` response with a follow-up request to `gpt-4o-mini`, which can effectively process the data returned from the initial o1-preview response."
    ]
   },
   {

registry.yaml

@@ -384,14 +384,6 @@
   tags:
     - embeddings
 
-- title: Azure DALL·E image generation example
-  path: examples/azure/DALL-E.ipynb
-  date: 2023-06-12
-  authors:
-    - glecaros
-  tags:
-    - dall-e
-
 - title: Azure Chat Completions example (preview)
   path: examples/azure/chat.ipynb
   date: 2023-03-28
@@ -410,17 +402,6 @@
   tags:
     - completions
 
-- title: Azure completions example
-  path: examples/azure/completions.ipynb
-  date: 2022-12-16
-  authors:
-    - cmurtz-msft
-    - glecaros
-    - kristapratico
-  tags:
-    - embeddings
-    - completions
-
 - title: Azure embeddings example
   path: examples/azure/embeddings.ipynb
   date: 2022-07-12