diff --git a/chunk_codegen.py b/chunk_codegen.py
index 96dcbfc0f..88d917809 100644
--- a/chunk_codegen.py
+++ b/chunk_codegen.py
@@ -1210,8 +1210,6 @@ class ChunkRegionSearch(object):
         return chunk_infos
 
     def _find_free_dim(self, input_trace, output_trace, start_idx, end_idx):
-        if start_idx == 71 and end_idx == 126:
-            print(1)
         start_traces = input_trace[start_idx]
         end_trace = output_trace[end_idx]
         end_node = self.node_list[end_idx]
@@ -1347,15 +1345,6 @@ def _gen_chunk_slice_dim(chunk_dim, chunk_idx_name, shape):
     return new_shape
 
 
-def _get_first_non_single_dim(shape):
-    for idx, i in enumerate(shape):
-        if i == 1:
-            continue
-        else:
-            return idx
-    raise RuntimeError("can not get first non single dim for shape", shape)
-
-
 def _gen_loop_start(chunk_input, chunk_output, chunk_ouput_dim, chunk_size=2):
     input_node = chunk_input[0]
     out_shape = _get_node_shape(chunk_output)