Remove dep to docopt

conda/migrate.py

@@ -177,13 +177,8 @@ else:
 
 
 def main(argv=None):
-  from docopt import docopt
   import sys
-  doc = __doc__.format(prog=sys.argv[0])
-  args = docopt(doc, argv=argv)
-
-  migrate(args['<template_recipe>'], args['<old_recipe>'],
-          args['<conda_build_variant>'], args['<package_folder>'])
+  migrate(*sys.argv[1:])
 
 
 if __name__ == '__main__':