Remove unused imports.

bin/oil.py

@@ -55,17 +55,13 @@ def _tlog(msg):
# Set in Modules/main.c.
HAVE_READLINE = os.getenv('_HAVE_READLINE') != ''

from osh import word_parse  # for tracing
from osh import cmd_parse  # for tracing

from osh import parse_lib

from core import alloc
from core import args
from core import builtin
from core import cmd_exec
from core import legacy
from core import lexer  # for tracing
from core import main_loop
from core import process
from core import reader

core/util.py

@@ -16,10 +16,6 @@
import sys
import zipimport  # NOT the zipfile module.

if not os.getenv('_OVM_DEPS'):
  import inspect
  import types

from asdl import const

Buffer = cStringIO.StringIO  # used by asdl/format.py

core/util_test.py

@@ -17,7 +17,7 @@
class UtilTest(unittest.TestCase):

  def testFoo(self):
    pass
    util.log('hello %d', 42)


if __name__ == '__main__':