diff --git a/build/win32/mozilla-dos2unix.py b/build/win32/mozilla-dos2unix.py
deleted file mode 100755
index bfdbd6f7f4b8..000000000000
--- a/build/win32/mozilla-dos2unix.py
+++ /dev/null
@@ -1,73 +0,0 @@
-#!/usr/bin/python
-
-import sys
-if not sys.platform == "win32":
-    raise Exception("This script was only meant for Windows.")
-
-import os
-
-def dos2unix(path):
-    print "dos2unix: %s" % path
-
-    inf = open(path, "r")
-    data = inf.read()
-    inf.close()
-
-
-    outf = open(path, "wb")
-    outf.write(data)
-    outf.close()
-
-adminfiles = [
-    "Root",
-    "Repository",
-    "Entries",
-    "Entries.Log",
-    "Entries.Static",
-    "Tag",
-    "Notify",
-    "Template"
-    ]
-
-def walkdirectory(path):
-    if not os.path.exists(os.path.join(path, "CVS")):
-        return
-
-    print "Directory: %s" % path
-
-    for f in adminfiles:
-        cvsf = os.path.join(path, "CVS", f)
-        if os.path.exists(cvsf):
-            dos2unix(cvsf)
-
-    entries = open(os.path.join(path, "CVS", "Entries"), "r")
-    for entry in entries:
-        if entry == "D\n":
-            continue
-        
-        (type, filename, rev, date, flags, extra) = entry.split('/')
-        if type == "D" or flags == "-kb" or rev[0] == "-":
-            continue
-
-        dos2unix(os.path.join(path, filename))
-
-    # Now walk subdirectories
-    for entry in os.listdir(path):
-        subdir = os.path.join(path, entry)
-        if os.path.isdir(subdir):
-            walkdirectory(subdir)
-
-topsrcdir = os.sep.join(os.path.abspath(__file__).split(os.sep)[:-3])
-
-print """This command will convert the source tree at
-%s 
-to an MSYS-compatible (unix mode) source tree. You can run this
-command multiple times safely. Are you sure you want to continue (Y/N)? """ % topsrcdir,
-sys.stdout.flush()
-print
-
-ask = raw_input()
-if len(ask) == 0 or (ask[0] != "y" and ask[0] != "Y"):
-    raise Exception("User aborted action.")
-
-walkdirectory(topsrcdir)