remove unused libraries

Author: wogsland

requirements.txt

@@ -1,8 +1,5 @@
-beautifulsoup4==4.6.1
-freezegun==0.3.9
 mock==2.0.0
 pytest==4.6.6
 pytest-runner==5.2
 requests==2.22.0
 responses==0.10.6
-xmlformatter==0.1.1

tests/test_api.py

@@ -1,21 +1,12 @@
 # -*- coding: utf-8 -*-
 from __future__ import print_function
 from __future__ import unicode_literals
-import io
-import json
 import mock
-import xml.etree.ElementTree as ElementTree
-import xmlformatter
 
-from bs4 import BeautifulSoup
 from unittest import TestCase
-from freezegun import freeze_time
-
 from src.api import CmixAPI, default_cmix_api, CMIX_SERVICES
 from src.error import CmixError
-
 from popresearch.models import CmixDataArchive, Survey
-
 from .factories import UserFactory