ML/LLM: Fix notebook cratedb-vectorstore-rag-openai-sql.ipynb

It still used dialect's `patch_inspector` while it is no longer there.

Author: amotl

topic/machine-learning/llm-langchain/cratedb-vectorstore-rag-openai-sql.ipynb

@@ -79,13 +79,9 @@
     "import pandas as pd\n",
     "import sqlalchemy as sa\n",
     "\n",
-    "# TODO: Bring this into the `crate-python` driver.\n",
-    "from cratedb_toolkit.sqlalchemy.patch import patch_inspector\n",
     "from langchain_community.document_loaders import PyPDFLoader\n",
     "from langchain_text_splitters import RecursiveCharacterTextSplitter\n",
-    "from langchain_openai import OpenAIEmbeddings\n",
-    "\n",
-    "patch_inspector()"
+    "from langchain_openai import OpenAIEmbeddings"
    ]
   },
   {