Remove unused function.

tools/copy_dart.py

 #!/usr/bin/env python
 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 """Used to merge and copy dart source files for deployment to AppEngine"""
 
 import fileinput
 import sys
 import shutil
 import os
@@ skipping 47 matching lines @@
 def normjoin(*args):
   return os.path.normpath(os.path.join(*args))
 
 def mergefiles(srcs, dstfile):
   for src in srcs:
     with open(src, 'r') as s:
       for line in s:
         if not line.startswith('part of '):
           dstfile.write(line)
 
-def copyfile(src, dst):
-  if not exists(dirname(dst)):
-    os.makedirs(dirname(dst))
-  with open(src, 'r') as s:
-    with open(dst, 'w') as d:
-      d.write(s.read())
-
 def main(outdir = None, *inputs):
   if not outdir or not inputs:
     print "Usage: %s OUTDIR INPUTS" % args[0]
     print "  OUTDIR is the war directory to copy to"
     print "  INPUTS is a list of files or patterns used to specify the input"
     print "   .dart files"
     print "This script should be run from the client root directory."
     print "Files will be merged and copied to: OUTDIR/relative-path-of-file,"
     print "except for dart files with absolute paths, which will be copied to"
     print " OUTDIR/absolute-path-as-directories"
@@ skipping 50 matching lines @@
       for suffix in library.imports:
         m = re.match(r'[\'"]([^\'"]+)[\'"](\s+as\s+\w+)?$', suffix)
         uri = m.group(0)
         if not uri.startswith('dart:'):
           worklist.append(normjoin(dirname(lib), uri));
 
   return 0
 
 if __name__ == '__main__':
   sys.exit(main(*sys.argv[1:]))