Update myst file

Author: ckrapu

examples/gaussian_processes/GP-Heteroskedastic.ipynb

@@ -1736,14 +1736,6 @@
     "%watermark -n -u -v -iv -w -p xarray\n"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "669b9685",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
   {
    "cell_type": "markdown",
    "metadata": {},