Delete unused logger class

src/briar/gtk/logger.py

-# Copyright (c) 2019 Nico Alt
-# Copyright (c) 2014-2018 Cedric Bellegarde <cedric.bellegarde@adishatz.org>
-# Copyright (c) 2017 Bilal Elmoussaoui <bil.elmoussaoui@gmail.com>
-# SPDX-License-Identifier: AGPL-3.0-only
-# License-Filename: LICENSE.md
-#
-# Initial version based on GNOME Lollypop
-# https://gitlab.gnome.org/World/lollypop/blob/1.0.2/lollypop/logger.py
-
-import logging
-import sys
-
-from briar.gtk.define import App
-
-
-class Logger:
-
-    FORMAT = "[%(levelname)-s] %(asctime)s %(message)s"
-    DATE = "%Y-%m-%d %H:%M:%S"
-    __log = None
-    APP = "app.briar.gtk"
-
-    @staticmethod
-    def get_default():
-        if Logger.__log is None:
-            logger = logging.getLogger(Logger.APP)
-
-            handler = logging.StreamHandler(sys.stdout)
-            formater = logging.Formatter(Logger.FORMAT, Logger.DATE)
-            handler.setFormatter(formater)
-            logger.addHandler(handler)
-            logger.setLevel(logging.DEBUG)
-
-            Logger.__log = logging.getLogger(Logger.APP)
-        return Logger.__log
-
-    @staticmethod
-    def warning(msg, *args):
-        Logger.get_default().warning(msg, *args)
-
-    @staticmethod
-    def debug(msg, *args):
-        if App().debug:
-            Logger.get_default().debug(msg, *args)
-
-    @staticmethod
-    def info(msg, *args):
-        Logger.get_default().info(msg, *args)
-
-    @staticmethod
-    def error(msg, *args):
-        Logger.get_default().error(msg, *args)