remove import test in pythainlp

Author: wannaphong

pythainlp/__init__.py

@@ -10,7 +10,6 @@
 from pythainlp.date import now
 from pythainlp.tag import pos_tag
 from pythainlp.collation import collation
-from pythainlp.test import TestUM
 from pythainlp.Text import Text
 from pythainlp.MetaSound import MetaSound
 from pythainlp.soundex import LK82,Udom83