Reverting changes to the cell instance filter Python object.

openmc/filter.py

@@ -550,8 +550,6 @@ class CellInstanceFilter(Filter):
         Unique identifier for the filter
     num_bins : Integral
         The number of filter bins
-    geometry_level : Integral
-        Geometry level of the specified cell (used to compute instances in the simulation)
 
     See Also
     --------
@@ -561,7 +559,6 @@ class CellInstanceFilter(Filter):
     def __init__(self, bins, filter_id=None):
         self.bins = bins
         self.id = filter_id
-        self._geom_level = None
 
     @Filter.bins.setter
     def bins(self, bins):
@@ -573,15 +570,6 @@ class CellInstanceFilter(Filter):
             pairs[i, 1] = instance
         self._bins = pairs
 
-    @property
-    def geometry_level(self):
-        return self._geometry_level
-
-    @geometry_level.setter
-    def geometry_level(self, val):
-        cv.check_type('geometry level', val, Integral)
-        self._geometry_level = val
-
     def get_pandas_dataframe(self, data_size, stride, **kwargs):
         """Builds a Pandas DataFrame for the Filter's bins.
 
@@ -630,8 +618,7 @@ class CellInstanceFilter(Filter):
         element = ET.Element('filter')
         element.set('id', str(self.id))
         element.set('type', self.short_name.lower())
-        if self.geometry_level:
-            element.set('geometry_level', self.geometry_level)
+
         subelement = ET.SubElement(element, 'bins')
         subelement.text = ' '.join(str(i) for i in self.bins.ravel())
         return element