[general] Refactoring

* remove (hopefully) unnecessary import statements
* make some code a bit more compact
* remove dead code ... again: hopefully so

bumblebee/engine.py

@@ -1,9 +1,3 @@
-import os
-import sys
-import glob
-import pkgutil
-import textwrap
-import argparse
 import importlib
 import bumblebee.theme
 import bumblebee.output
@@ -25,24 +19,6 @@ class Engine:
         for m in self._config.modules():
             self._modules.append(self.load_module(m))
 
-    def register_event(self, eventspec):
-        return
-        # TODO
-        event = eventspec.split(self._args.split)
-        if len(event) < 3:
-            raise Exception("invalid click event format, expected 3 parameters")
-        self._output.add_callback(
-            module = event[0],
-            button = int(event[1]),
-            cmd = event[2],
-        )
-
-    def register_events(self):
-        return
-        # TODO
-        for e in self._args.events:
-            self.register_event(e)
-
     def run(self):
         self._output.start()