removed unused dependencies

Author: MartinPdeS

PyMieSim/utils.py

@@ -1,14 +1,10 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-from pydantic import ConfigDict
+
 import numpy
 
 # Configuration dictionary for the Pydantic dataclass
-config_dict = ConfigDict(
-    kw_only=True, slots=True, extra="forbid", arbitrary_types_allowed=True
-)
-
 
 def cartesian_to_spherical(
     x: numpy.ndarray, y: numpy.ndarray, z: numpy.ndarray