Autofix issues in 5 files

Resolved issues in the following files via DeepSource Autofix:
1. examples/simple_thing.py
2. src/labthings/__init__.py
3. src/labthings/views/__init__.py
4. src/labthings/wsgi.py
5. tests/conftest.py

examples/simple_thing.py

@@ -1,9 +1,7 @@
 #!/usr/bin/env python
-import time
 
 from labthings import ActionView, PropertyView, create_app, fields, find_component, op
 from labthings.example_components import PretendSpectrometer
-from labthings.json import encode_json
 
 """
 Class for our lab component functionality. This could include serial communication,

src/labthings/__init__.py

@@ -55,7 +55,6 @@
     "views",
     "fields",
     "Schema",
-    "semantics",
     "json",
     "PropertyView",
     "ActionView",

src/labthings/views/__init__.py

@@ -59,10 +59,9 @@ def get_value(self):
         if not callable(get_method):
             raise TypeError("Attribute 'get' of View must be a callable")
         response = get_method()  # pylint: disable=not-callable
-        if isinstance(response, ResponseBase):  # Pluck useful data out of HTTP response
-            return response.json if response.json else response.data
-        else:  # Unless somehow an HTTP response isn't returned...
-            return response
+        if isinstance(response, ResponseBase):  # Pluck useful data out of HTTP response
+            return response.json if response.json else response.data
+        return response
 
     def _find_request_method(self):
         meth = getattr(self, request.method.lower(), None)

src/labthings/wsgi.py

@@ -1,11 +1,7 @@
-import logging
-import signal
 import socket
-import threading
 import hashlib
 
 from werkzeug.serving import run_simple
-from werkzeug.debug import DebuggedApplication
 from zeroconf import IPVersion, ServiceInfo, Zeroconf, get_all_addresses
 
 from .find import current_labthing

tests/conftest.py

@@ -8,7 +8,6 @@
 from flask import Flask
 from flask.testing import FlaskClient
 from flask.views import MethodView
-from werkzeug.test import EnvironBuilder
 
 from labthings import LabThing
 from labthings.actions import Pool