Unregister the registered eventfd file descriptor.
pub fn unregister_eventfd(self: *IoUring) !void
pub fn unregister_eventfd(self: *IoUring) !void {
assert(self.fd >= 0);
const res = linux.io_uring_register(
self.fd,
.UNREGISTER_EVENTFD,
null,
0,
);
try handle_registration_result(res);
}