PEP8 fixes

common/appointment.py

@@ -1,4 +1,3 @@
-import json
 import struct
 from binascii import unhexlify
 

teos/responder.py

@@ -1,4 +1,3 @@
-import json
 from queue import Queue
 from threading import Thread
 

test/common/unit/test_appointment.py

@@ -1,4 +1,3 @@
-import json
 import struct
 import binascii
 from pytest import fixture

test/teos/unit/test_api.py

@@ -7,7 +7,6 @@ from teos import HOST, PORT
 import teos.errors as errors
 from teos.watcher import Watcher
 from teos.inspector import Inspector
-from teos.gatekeeper import Gatekeeper
 from teos.appointments_dbm import AppointmentsDBM
 from teos.responder import Responder, TransactionTracker
 

test/teos/unit/test_db_manager.py

@@ -1,5 +1,4 @@
 import os
-import json
 import shutil
 import pytest
 

test/teos/unit/test_responder.py

@@ -1,4 +1,3 @@
-import json
 import pytest
 import random
 from uuid import uuid4