remove const normalization in indexing [pr] (#14989)

rangeify can create const with device, and all is normalized in to_define_global

tinygrad/schedule/indexing.py

@@ -118,8 +118,6 @@ pm_apply_rangeify = PatternMatcher([
   (UPat(GroupOp.All, name="x"), create_bufferize_and_index_based_on_ranges),
   # remove movement op
   (UPat(GroupOp.Movement, name="x"), remove_movement_op_after_rangeify),
-  # const/define_var shouldn't have src
-  (UPat((Ops.CONST, Ops.DEFINE_VAR), name="c"), lambda ctx,c: c.replace(src=()) if c in ctx.range_map else None),
 ])
 
 @functools.cache