Removed forwards_sources remnant

sigtools/signatures.py

@@ -48,33 +48,4 @@
 merge = modifiers.autokwoargs(merge)
 embed = modifiers.autokwoargs(embed)
 mask = modifiers.autokwoargs(exceptions=('num_args',))(mask)
-forwards_sources = modifiers.autokwoargs(exceptions=('num_args',))(forwards)
-
-def forwards(*args, **kwargs):
-    """Calls `mask` on ``inner``, then returns the result of calling
-    `embed` with ``outer`` and the result of `mask`.
-
-    :param inspect.Signature outer: The outermost signature.
-    :param inspect.Signature inner: The inner signature.
-
-    ``use_varargs`` and ``use_varkwargs`` are the same parameters as in
-    `.embed`, and ``num_args``, ``named_args``, ``hide_args`` and
-    ``hide_kwargs`` are parameters of `.mask`.
-
-    :return: the resulting `inspect.Signature` object
-    :raises: `IncompatibleSignatures`
-
-    ::
-
-        >>> from sigtools import support, signatures
-        >>> print(signatures.forwards(
-        ...     support.s('a, *args, x, **kwargs'),
-        ...     support.s('b, c, *, y, z'),
-        ...     1, 'y'))
-        (a, c, *, x, z)
-
-    .. seealso::
-        :ref:`forwards-pick`
-
-    """
-    return forwards_sources(*args, **kwargs)
+forwards = modifiers.autokwoargs(exceptions=('num_args',))(forwards)