Remove unused imports.

Author: amjith

setup.py

@@ -1,5 +1,5 @@
 from setuptools import setup, find_packages
-import sys, os
+import os
 
 here = os.path.abspath(os.path.dirname(__file__))
 README = open(os.path.join(here, 'README.rst')).read()

src/sql/run.py

@@ -1,6 +1,4 @@
-import functools
 import operator
-import types
 import csv
 import six
 import codecs