Tidied up unused imports

ref-test/app/__init__.py

@@ -1,9 +1,7 @@
 from .config import Development as Config
 from .install import install_app
-from .models import Entry, Dataset, Test, User
+from .models import User
 from .extensions import bootstrap, csrf, db, login_manager, mail
-from .tools.data import save
-from .tools.logs import write
 
 from flask import flash, Flask, render_template, request
 from flask.helpers import url_for
@@ -11,7 +9,6 @@ from flask.json import jsonify
 from flask_wtf.csrf import CSRFError
 from werkzeug.middleware.proxy_fix import ProxyFix
 
-from cryptography.fernet import Fernet
 from datetime import datetime
 
 def create_app():