Remove old private function that is not needed anymore

harmonica/_forward/dipole.py

@@ -389,30 +389,6 @@ def _jit_dipole_magnetic_component_cartesian(
  progress_proxy.update(1)
 
 
-def _get_magnetic_forward_function(component):
- """
- Returns the Choclo magnetic forward modelling function for the desired
- component
-
- Parameters
- ----------
- component : str
- Magnetic field component.
-
- Returns
- -------
- forward_function : callable
- Forward modelling function for the desired component.
- """
- if component not in ("easting", "northing", "upward"):
- raise ValueError(
- f"Invalid component '{component}'. "
- "It must be either 'easting', 'northing' or 'upward'."
- )
- functions = {"easting": magnetic_e, "northing": magnetic_n, "upward": magnetic_u}
- return functions[component]
-
-
 _jit_dipole_magnetic_field_cartesian_serial = jit(nopython=True)(
  _jit_dipole_magnetic_field_cartesian
 )