Remove extra colab link

samples/core/get_started/basic_text_classification.ipynb

@@ -15,16 +15,6 @@
     }
   },
   "cells": [
-    {
-      "cell_type": "markdown",
-      "metadata": {
-        "id": "view-in-github",
-        "colab_type": "text"
-      },
-      "source": [
-        "[View in Colaboratory](https://colab.research.google.com/github/MarkDaoust/models/blob/basic-text-classification/samples/core/get_started/basic_text_classification.ipynb)"
-      ]
-    },
     {
       "metadata": {
         "id": "Ic4_occAAiAT",
@@ -658,4 +648,4 @@
       ]
     }
   ]
-}
+}
\ No newline at end of file