Revert "io_uring: ensure deferred completions are posted for multishot"

Revert "io_uring: ensure deferred completions are posted for multishot"

This reverts commit b82c386898f7b00cb49abe3fbd622017aaa61230 which is
commit 687b2bae0efff9b25e071737d6af5004e6e35af5 upstream.

Jens writes:
	There's some missing dependencies that makes this not work
	right, I'll bring it back in a series instead.

Link: https://lore.kernel.org/r/313f2335-626f-4eea-8502-d5c3773db35a@kernel.dk
Reported-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>