Remove remaining rst syntax

Author: migueldvb

tutorials/UVES/UVES.ipynb

@@ -1124,11 +1124,7 @@
       "ax.set_ylabel('flux')\n",
       "ax.set_title('Ca II H line in MN Lup')\n",
       "# when using this interface, we need to explicitly call the draw routine\n",
-      "plt.draw()\n",
-      "\n",
-      ".. image:: CaII-lines-one.png\n",
-      ":scale: 100%\n",
-      ":align: center"
+      "plt.draw()"
      ],
      "language": "python",
      "metadata": {},