Update __init__.py

Author: AAriam

.manager/src/controlman/__init__.py

@@ -8,7 +8,7 @@
 import pyserials as _ps
 from gittidy import Git as _Git
 
-from controlman import _file_util, const, exception
+from controlman import const, exception
 from controlman import data_validator as _data_validator
 from controlman import date as _date
 from controlman import exception as _exception