webbrowser is not used here anymore

cura/CuraActions.py

@@ -4,8 +4,6 @@ from PyQt5.QtGui import QDesktopServices
 from UM.Event import CallFunctionEvent
 from UM.Application import Application
 
-import webbrowser
-
 class CuraActions(QObject):
     def __init__(self, parent = None):
         super().__init__(parent)