trace-events: drop orphan iscsi trace events

iscsi_aio_write16_cb, iscsi_aio_writev, iscsi_aio_read16_cb, and
iscsi_aio_readv have not not been in use since commit
063c3378 ("block/iscsi: introduce
bdrv_co_{readv, writev, flush_to_disk}").

These were the only trace events in block/iscsi.c so drop the the
trace.h include.

Cc: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1411394595-15300-4-git-send-email-stefanha@redhat.com

block/iscsi.c

@@ -34,7 +34,6 @@
 #include "qemu/bitops.h"
 #include "qemu/bitmap.h"
 #include "block/block_int.h"
-#include "trace.h"
 #include "block/scsi.h"
 #include "qemu/iov.h"
 #include "sysemu/sysemu.h"

trace-events

@@ -932,12 +932,6 @@ escc_sunkbd_event_out(int ch) "Translated keycode 0x%2.2x"
 escc_kbd_command(int val) "Command %d"
 escc_sunmouse_event(int dx, int dy, int buttons_state) "dx=%d dy=%d buttons=%01x"
 
-# block/iscsi.c
-iscsi_aio_write16_cb(void *iscsi, int status, void *acb, int canceled) "iscsi %p status %d acb %p canceled %d"
-iscsi_aio_writev(void *iscsi, int64_t sector_num, int nb_sectors, void *opaque, void *acb) "iscsi %p sector_num %"PRId64" nb_sectors %d opaque %p acb %p"
-iscsi_aio_read16_cb(void *iscsi, int status, void *acb, int canceled) "iscsi %p status %d acb %p canceled %d"
-iscsi_aio_readv(void *iscsi, int64_t sector_num, int nb_sectors, void *opaque, void *acb) "iscsi %p sector_num %"PRId64" nb_sectors %d opaque %p acb %p"
-
 # hw/scsi/esp.c
 esp_error_fifo_overrun(void) "FIFO overrun"
 esp_error_unhandled_command(uint32_t val) "unhandled command (%2.2x)"