Remove confidence score in question node (#1122)

Author: ovalle15

examples/prediction_upload/image_predictions.ipynb

@@ -303,9 +303,9 @@
         "## NDJSON\n",
         "bbox_with_radio_subclass_prediction_ndjson = {\n",
         "    \"name\": \"bbox_with_radio_subclass\", \n",
+        "    \"confidence\": 0.5,\n",
         "    \"classifications\": [{\n",
         "        \"name\": \"sub_radio_question\",\n",
-        "        \"confidence\": 0.5,\n",
         "        \"answer\": \n",
         "            { \"name\":\"first_sub_radio_answer\", \"confidence\": 0.5}\n",
         "         \n",
@@ -522,7 +522,7 @@
       "metadata": {},
       "source": [
         "# send a sample image as batch to the project\n",
-        "global_key = \"2560px-Kitano_Street_Kobe01s5s4110.jpeg\"\n",
+        "global_key = \"2560px-Kitano_Street_Kobe01s.jpeg\"\n",
         "test_img_url = {\n",
         "    \"row_data\": \"https://storage.googleapis.com/labelbox-datasets/image_sample_data/2560px-Kitano_Street_Kobe01s5s4110.jpeg\",\n",
         "    \"global_key\": global_key\n",