reintroduces util.unlink, for POSIX and Windows. windows: factor it out of rename posix: add alias 'unlink' for os.unlink Note that this new unlink function now has different semantics than the unlink() we had before changeset 6bf39d88c857 ("rename util.unlink to unlinkpath").

--- a/mercurial/posix.py	Tue Jan 11 14:10:16 2011 +0100
+++ b/mercurial/posix.py	Tue Jan 11 14:10:16 2011 +0100
@@ -13,6 +13,7 @@
 nulldev = '/dev/null'
 normpath = os.path.normpath
 samestat = os.path.samestat
+unlink = os.unlink
 rename = os.rename
 expandglobs = False