diff --git a/python/dune/perftool/sumfact/symbolic.py b/python/dune/perftool/sumfact/symbolic.py
index 28b7a061f330d839ab7e93be66aca397e6875109..0cbb6b814b13b3f60bacc065ea539ed0a8a37af5 100644
--- a/python/dune/perftool/sumfact/symbolic.py
+++ b/python/dune/perftool/sumfact/symbolic.py
@@ -442,18 +442,6 @@ class VectorizedSumfactKernel(SumfactKernelBase, ImmutableRecord, prim.Variable)
                 return i
         return 0
 
-    def _sliced_expr(self):
-        quad_inames = quadrature_inames()
-        index = []
-        i = 0
-        sliced = 0
-        for d in range(world_dimension()):
-            if self.matrix_sequence[d].face is None:
-                if self.matrix_sequence[d].slice_size:
-                    return prim.Variable(quad_inames[i])
-                i = i + 1
-        return 0
-
     def _quadrature_index(self, sf):
         # Traverse all the quadrature inames and map them to their correct direction
         quad_inames = quadrature_inames()