wxGUI: fix calling g.extension on windows

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@61139 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/modules/extensions.py

@@ -66,10 +66,7 @@ class InstallExtensionWindow(wx.Frame):
 
         self.optionBox = wx.StaticBox(parent = self.panel, id = wx.ID_ANY,
                                       label = " %s " % _("Options"))
-        if sys.platform == 'win32':
-            task = gtask.parse_interface('g.extension.py')
-        else:
-            task = gtask.parse_interface('g.extension')
+        task = gtask.parse_interface('g.extension')
         ignoreFlags = ['l', 'c', 'g', 'a', 'f', 't', 'help', 'quiet']
         if sys.platform == 'win32':
             ignoreFlags.append('d')