Do not qualify relative imports

This is unneeded and fails while installed.

lib/gui_lite.py

@@ -18,10 +18,7 @@ import webbrowser
 import history_widget
 import util
 
-try:
+import gui_qt
-    import lib.gui_qt as gui_qt
-except ImportError:
-    import electrum.gui_qt as gui_qt
 
 bitcoin = lambda v: v * 100000000
 

lib/simple_config.py

@@ -1,6 +1,6 @@
 import json
 import os
-from lib.util import user_dir
+from util import user_dir
 
 class SimpleConfig:
   default_options = {"gui": "lite"}