remove tag session from noxfile (#2368)

Follows on from 932e5d6 to drop the tag
session from the noxfile.

Author: oraNod

noxfile.py

@@ -249,18 +249,3 @@ def make(session: nox.Session):
         *make_args,
         external=True,
     )
-
-
-@nox.session
-def tag(session: nox.Session):
-    """
-    Check the core repo for new releases and create tags in ansible-documentation
-    """
-    install(session, req="tag")
-    args = list(session.posargs)
-
-    # If run without any arguments, default to "tag"
-    if not any(arg.startswith(("hash", "mantag", "new-tags", "tag")) for arg in args):
-        args.append("tag")
-
-    session.run("python", "hacking/tagger/tag.py", *args)