partly revert accidental commit https://trac.osgeo.org/grass/changeset/73293

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@73295 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_core/ghelp.py

@@ -31,7 +31,7 @@ else:
     _unichr = chr
 
 import wx
-from wx.html2 import WebView as HtmlWindow
+from wx.html import HtmlWindow
 try:
     from wx.lib.agw.hyperlink import HyperLinkCtrl
 except ImportError: