UPSTREAM: net/sched: Retire rsvp classifier

commit 265b4da82dbf5df04bee5a5d46b7474b1aaf326a upstream.

The rsvp classifier has served us well for about a quarter of a century but has
has not been getting much maintenance attention due to lack of known users.

Bug: 304913975
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Kyle Zeng <zengyhkyle@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 08569c92f7f339de21b7a68d43d6795fc0aa24f2)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I4716954c5e8d5414a580eb34c699908028aa754b