remove backend print

Author: LarsKue

examples/SIR_Posterior_Estimation.ipynb

@@ -11,40 +11,24 @@
    ]
   },
   {
-   "cell_type": "code",
-   "execution_count": 1,
-   "id": "0383ba66",
    "metadata": {},
+   "cell_type": "code",
    "outputs": [],
+   "execution_count": null,
    "source": [
     "import os\n",
     "# Set to your favorite backend\n",
     "if \"KERAS_BACKEND\" not in os.environ:\n",
     "    # set this to \"torch\", \"tensorflow\", or \"jax\"\n",
-    "    os.environ[\"KERAS_BACKEND\"] = \"tensorflow\"\n",
-    "else:\n",
-    "    print(f\"Using '{os.environ['KERAS_BACKEND']}' backend\")"
-   ]
+    "    os.environ[\"KERAS_BACKEND\"] = \"tensorflow\""
+   ],
+   "id": "5fb5c0f856b6bcf4"
   },
   {
+   "metadata": {},
    "cell_type": "code",
-   "execution_count": 2,
-   "id": "684f2d7e19d40e09",
-   "metadata": {
-    "ExecuteTime": {
-     "end_time": "2025-04-11T19:54:02.700953Z",
-     "start_time": "2025-04-11T19:53:33.926075Z"
-    }
-   },
-   "outputs": [
-    {
-     "name": "stderr",
-     "output_type": "stream",
-     "text": [
-      "WARNING:2025-04-21 12:41:48,425:jax._src.xla_bridge:967: An NVIDIA GPU may be present on this machine, but a CUDA-enabled jaxlib is not installed. Falling back to cpu.\n"
-     ]
-    }
-   ],
+   "outputs": [],
+   "execution_count": null,
    "source": [
     "import datetime\n",
     "\n",
@@ -55,7 +39,8 @@
     "import keras\n",
     "\n",
     "import bayesflow as bf"
-   ]
+   ],
+   "id": "4a9355783f1314a"
   },
   {
    "cell_type": "markdown",