[PATCH] osutil: remove Python 2.4 errno conversion workaround

[Gregory Szorc]

# HG changeset patch
# User Gregory Szorc <gregory.szorc at gmail.com>
# Date 1434993091 25200
#      Mon Jun 22 10:11:31 2015 -0700
# Node ID f3727ed787bf01618ea75dab25eca86bbfd647ba
# Parent  2af150f19ecdc93659d81a644b5aa1f417167647
osutil: remove Python 2.4 errno conversion workaround

diff --git a/mercurial/pure/osutil.py b/mercurial/pure/osutil.py
--- a/mercurial/pure/osutil.py
+++ b/mercurial/pure/osutil.py
@@ -98,16 +98,9 @@ else:
     _kernel32.CreateFileA.restype = _HANDLE
 
     def _raiseioerror(name):
         err = ctypes.WinError()
-        # For python 2.4, treat ESRCH as ENOENT like WindowsError does
-        # in python 2.5 or later.
-        # py24:           WindowsError(3, '').errno => 3
-        # py25 or later:  WindowsError(3, '').errno => 2
-        errno = err.errno
-        if errno == ESRCH:
-            errno = ENOENT
-        raise IOError(errno, '%s: %s' % (name, err.strerror))
+        raise IOError(err.errno, '%s: %s' % (name, err.strerror))
 
     class posixfile(object):
         '''a file object aiming for POSIX-like semantics