Revert "Use pytz to figure out local timezone dynamically"

This reverts commit c19de638a1.

bumblebee/modules/datetime.py

@@ -15,11 +15,6 @@ from __future__ import absolute_import
 import datetime
 import locale
 import bumblebee.engine
-import os
-try:
-    import pytz
-except ModuleNotFoundError:
-    pytz = None
 
 def default_format(module):
     default = "%x %X"
@@ -46,15 +41,8 @@ class Module(bumblebee.engine.Module):
             locale.setlocale(locale.LC_TIME, ('en_US', 'UTF-8'))
 
     def get_time(self, widget):
-        if pytz:
-            # Get local timezone (see https://github.com/tobi-wan-kenobi/bumblebee-status/issues/468)
-            my_tz_name = '/'.join(os.path.realpath('/etc/localtime').split('/')[-2:])
-            my_tz = pytz.timezone(my_tz_name)
-        else:
-            my_tz = None
-        
         enc = locale.getpreferredencoding()
-        retval = datetime.datetime.now(my_tz).strftime(self._fmt)
+        retval = datetime.datetime.now().strftime(self._fmt)
         if hasattr(retval, "decode"):
             return retval.decode(enc)
         return retval