remove some more unused code

python/dune/perftool/pdelab/localoperator.py

@@ -372,14 +372,6 @@ def get_accumulation_info(expr, visitor):
                                   )
 
 
-@iname
-def grad_iname(index, dim):
-    from dune.perftool.pdelab.index import name_index
-    name = name_index(index)
-    domain(name, dim)
-    return name
-
-
 def generate_accumulation_instruction(expr, visitor):
     # Collect the lfs and lfs indices for the accumulate call
     test_lfs = determine_accumulation_space(visitor.test_info, 0)