Yogi fs bugfix (#2788)

* Cleaned up some comments, edited cell metadata, and commented out some code using better materialization.

* Fixed code formatting errors.

* Updated code snippet for attaching Redis instance to feature store as online store.

* Fixed bug BUG 2783996.

* Fixed bug BUG 2783996.

* Removed a redundant code cell.

sdk/python/featurestore_sample/notebooks/sdk_only/4. Enable online store and run online inference.ipynb

@@ -390,52 +390,6 @@
     ")"
    ]
   },
-  {
-   "attachments": {},
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Retrieve the user-assigned managed identity (UAI) used for feature store for materialization\n",
-    "This code cell retrieves the principal ID, client ID, and ARM ID property values for the UAI that will be used by the feature store for data materialization."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {
-    "gather": {
-     "logged": 1696554548087
-    },
-    "jupyter": {
-     "outputs_hidden": false,
-     "source_hidden": false
-    },
-    "name": "retrieve-uai",
-    "nteract": {
-     "transient": {
-      "deleting": false
-     }
-    }
-   },
-   "outputs": [],
-   "source": [
-    "from azure.mgmt.msi import ManagedServiceIdentityClient\n",
-    "\n",
-    "uai_arm_id = fs_client.feature_stores.get(\n",
-    "    featurestore_name\n",
-    ").materialization_identity.resource_id\n",
-    "uai_principal_id = fs_client.feature_stores.get(\n",
-    "    featurestore_name\n",
-    ").materialization_identity.principal_id\n",
-    "uai_client_id = fs_client.feature_stores.get(\n",
-    "    featurestore_name\n",
-    ").materialization_identity.client_id\n",
-    "\n",
-    "print(\"uai_principal_id:\" + uai_principal_id)\n",
-    "print(\"uai_client_id:\" + uai_client_id)\n",
-    "print(\"uai_arm_id:\" + uai_arm_id)"
-   ]
-  },
   {
    "attachments": {},
    "cell_type": "markdown",
@@ -578,7 +532,7 @@
     "from datetime import datetime, timedelta\n",
     "\n",
     "# Trigger backfill on the \"accounts\" feature set.\n",
-    "# Backfill from 01/01/2023 to all the way to 3 hours ago.\n",
+    "# Backfill from 01/01/2020 to all the way to 3 hours ago.\n",
     "\n",
     "st = datetime(2020, 1, 1, 0, 0, 0, 0)\n",
     "ed = datetime.now() - timedelta(hours=3)\n",
@@ -695,7 +649,7 @@
    "outputs": [],
    "source": [
     "# Trigger backfill on the \"transactions\" feature set to fill in the online/offline store.\n",
-    "# Backfill from 01/01/2023 to all the way to 3 hours ago.\n",
+    "# Backfill from 01/01/2020 to all the way to 3 hours ago.\n",
     "\n",
     "from datetime import datetime, timedelta\n",
     "\n",