Remove autoreload in examples (#4994)

# Remove autoreload in examples
Remove the `autoreload` in examples since it is not necessary for most
users:
```
%load_ext autoreload,
%autoreload 2
```

docs/modules/agents/tools/examples/zapier.ipynb

@@ -27,19 +27,6 @@
     "In code, below:"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "id": "a363309c",
-   "metadata": {
-    "tags": []
-   },
-   "outputs": [],
-   "source": [
-    "%load_ext autoreload\n",
-    "%autoreload 2"
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": 2,

docs/modules/chains/examples/sqlite.ipynb

@@ -1,16 +1,5 @@
 {
  "cells": [
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "id": "ca883d49",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "%load_ext autoreload\n",
-    "%autoreload 2"
-   ]
-  },
   {
    "cell_type": "markdown",
    "id": "0ed6aab1",