[PATCH RESEND] keyword: use wvfs.rmtree to remove kwdemo directory

[Christian Ebert]

# HG changeset patch
# User Christian Ebert <blacktrash at gmx.net>
# Date 1429364366 -7200
#      Sat Apr 18 15:39:26 2015 +0200
# Node ID 7d7445e0ea622532c20a8a8fa5a00e582fe96c38
# Parent  2ee10789d66b9ca500a7bfb1b3e031e04cdc4fb7
keyword: use wvfs.rmtree to remove kwdemo directory

diff --git a/hgext/keyword.py b/hgext/keyword.py
--- a/hgext/keyword.py
+++ b/hgext/keyword.py
@@ -457,9 +457,7 @@ def demo(ui, repo, *args, **opts):
     repo.commit(text=msg)
     ui.status(_('\n\tkeywords expanded\n'))
     ui.write(repo.wread(fn))
-    for root, dirs, files in os.walk(tmpdir):
-        for f in files:
-            util.unlinkpath(repo.vfs.reljoin(root, f))
+    repo.wvfs.rmtree()
 
 @command('kwexpand',
     commands.walkopts,