del converting from util

src/util.py

@@ -9,15 +9,6 @@ def log(data):
         fl.write(str(data))
 
 
-def string_to_bin(tox_id):
-    return tox_id.decode('hex')
-
-
-def bin_to_string(raw_id):
-    res = ''.join('{:02x}'.format(ord(x)) for x in raw_id)
-    return res.upper()
-
-
 def curr_directory():
     return os.path.dirname(os.path.realpath(__file__))