docs/library/uio: Remove description of uio.open().
Given that this function is exact alias of builtins.open(), it makes no
sense to expose it thru uio module too, increasing binary code size.
So, deprecate such usage and remove it from docs.
@@ -186,15 +186,6 @@ described here.
for stream operations. If an operation is not completed in the time
alloted, ``OSError(ETIMEDOUT)`` is raised.
-Functions
----------
-
-.. function:: open(name, mode='r', **kwargs)
-
- Open a file. Builtin ``open()`` function is aliased to this function.
- All ports (which provide access to file system) are required to support
- *mode* parameter, but support for other arguments vary by port.
-
Classes
-------
