doc: remove deprecation notices for eventdev
All deprecation notice targeted for v21.11 of eventdev has been
committed in the following commits, remove deprecation notices.
Fixes:
3c838062b91 ("eventdev: introduce event vector Rx capability")
Fixes:
929ebdd5430 ("eventdev/eth_rx: simplify event vector config")
Fixes:
295c053f90f ("eventdev: hide event device related structures")
Fixes:
dd451ad1520 ("doc: remove event crypto metadata deprecation note")
Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Jerin Jacob <jerinj@marvell.com>