bpo-35397: Remove deprecation and document urllib.parse.unwrap (GH-11481)

diff --git a/Doc/library/urllib.parse.rst b/Doc/library/urllib.parse.rst
index f993628..49276da 100644
--- a/Doc/library/urllib.parse.rst
+++ b/Doc/library/urllib.parse.rst
@@ -370,6 +370,13 @@
    .. versionchanged:: 3.2
       Result is a structured object rather than a simple 2-tuple.
 
+.. function:: unwrap(url)
+
+   Extract the url from a wrapped URL (that is, a string formatted as
+   ``<URL:scheme://host/path>``, ``<scheme://host/path>``, ``URL:scheme://host/path``
+   or ``scheme://host/path``). If *url* is not a wrapped URL, it is returned
+   without changes.
+
 .. _parsing-ascii-encoded-bytes:
 
 Parsing ASCII Encoded Bytes
diff --git a/Doc/tools/susp-ignored.csv b/Doc/tools/susp-ignored.csv
index a34524b..a0e7868 100644
--- a/Doc/tools/susp-ignored.csv
+++ b/Doc/tools/susp-ignored.csv
@@ -236,6 +236,8 @@
 library/urllib.request,,:port,:port
 library/urllib.request,,:lang,"xmlns=""http://www.w3.org/1999/xhtml"" xml:lang=""en"" lang=""en"">\n\n<head>\n"
 library/urllib.request,,:password,"""joe:password@python.org"""
+library/urllib.parse,,:scheme,<URL:scheme://host/path>
+library/urllib.parse,,:scheme,URL:scheme://host/path
 library/uuid,,:uuid,urn:uuid:12345678-1234-5678-1234-567812345678
 library/venv,,:param,":param nodist: If True, setuptools and pip are not installed into the"
 library/venv,,:param,":param progress: If setuptools or pip are installed, the progress of the"