In our [Basic DPF-Core Usage with PyMAPDL](https://mapdl.docs.pyansys.com/version/stable/examples/gallery_examples/00-mapdl-examples/basic_dpf_example.html#sphx-glr-examples-gallery-examples-00-mapdl-examples-basic-dpf-example-py) example, we need to remove `connect_to_server` because it's no longer used.