Remove `e_overestim`, `d_init`, `orientation`

Remove unused `e_overestim`, `d_init`, `orientation`.

gt_segmentation.py

@@ -18,17 +18,6 @@ import shapefile
 import datetime
 from numpy import loadtxt
 
-###############################
-# grab e_overestim and d_init #
-###############################
-
-node_id_param_file = "/data/misic/Convert_Global/node_id_param.json"
-with open(node_id_param_file) as f: node_id_param = json.load(f)
-# assign attributes to the whole graphs
-e_overestim = node_id_param["e_overestim"]
-d_init = node_id_param["d_init"]
-
-orientation = 'anti' 
 
 ##########################
 # load the edgelist file #