Updated sagemaker attribute configurations for V2 SDK support (#1636)

Co-authored-by: Aaron Markham <[email protected]>

Author: sdoyle88

introduction_to_amazon_algorithms/pca_mnist/pca_mnist.ipynb

@@ -319,7 +319,6 @@
    "source": [
     "from sagemaker.predictor import csv_serializer, json_deserializer\n",
     "\n",
-    "pca_predictor.content_type = 'text/csv'\n",
     "pca_predictor.serializer = csv_serializer\n",
     "pca_predictor.deserializer = json_deserializer"
    ]
@@ -409,7 +408,7 @@
    "source": [
     "import sagemaker\n",
     "\n",
-    "sagemaker.Session().delete_endpoint(pca_predictor.endpoint)"
+    "sagemaker.Session().delete_endpoint(pca_predictor.endpoint_name)"
    ]
   }
  ],
@@ -436,4 +435,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 2
-}
+}