[DOCS] Moving a bit more documentation

Author: Leguark

gempy_engine/core/data/options/evaluation_options.py

@@ -46,7 +46,7 @@ def number_octree_levels(self, value):
     @property
     def number_octree_levels_surface(self):
         # Raise error if the number of octree levels for the surface is 0
-        if self._number_octree_levels_surface <= 1 or self.number_octree_levels <= 1:
+        if self._number_octree_levels_surface <= 1:
             raise ValueError("The number of octree levels for the surface must be greater than 1.")
 
         if self._number_octree_levels_surface >= self.number_octree_levels: