io_uring: inline io_poll_complete

io_uring: inline io_poll_complete

[ upstream commmit eb6e6f0690c846f7de46181bab3954c12c96e11e ]

Inline io_poll_complete(), it's simple and doesn't have any particular
purpose.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/933d7ee3e4450749a2d892235462c8f18d030293.1633373302.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
[pavel: backport]
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>