[PATCH v2] tap-win32: Remove unnecessary stubs

[Akihiko Odaki <akihiko.odaki@daynix.com>]

Some of them are only necessary for POSIX systems. The others are
assigned to function pointers in NetClientInfo that can actually be
NULL.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
Changes in v2:
- Rebased.
- Link to v1: https://lore.kernel.org/r/20231006051127.5429-1-akihiko.odaki@daynix.com
---
 net/tap-win32.c | 54 ------------------------------------------------------
 1 file changed, 54 deletions(-)

diff --git a/net/tap-win32.c b/net/tap-win32.c
index 7b8b4be02cff..7edbd7163370 100644
--- a/net/tap-win32.c
+++ b/net/tap-win32.c
@@ -707,70 +707,16 @@ static void tap_win32_send(void *opaque)
     }
 }
 
-static bool tap_has_ufo(NetClientState *nc)
-{
-    return false;
-}
-
-static bool tap_has_vnet_hdr(NetClientState *nc)
-{
-    return false;
-}
-
-int tap_probe_vnet_hdr_len(int fd, int len)
-{
-    return 0;
-}
-
-void tap_fd_set_vnet_hdr_len(int fd, int len)
-{
-}
-
-int tap_fd_set_vnet_le(int fd, int is_le)
-{
-    return -EINVAL;
-}
-
-int tap_fd_set_vnet_be(int fd, int is_be)
-{
-    return -EINVAL;
-}
-
-static void tap_using_vnet_hdr(NetClientState *nc, bool using_vnet_hdr)
-{
-}
-
-static void tap_set_offload(NetClientState *nc, int csum, int tso4,
-                     int tso6, int ecn, int ufo, int uso4, int uso6)
-{
-}
-
 struct vhost_net *tap_get_vhost_net(NetClientState *nc)
 {
     return NULL;
 }
 
-static bool tap_has_vnet_hdr_len(NetClientState *nc, int len)
-{
-    return false;
-}
-
-static void tap_set_vnet_hdr_len(NetClientState *nc, int len)
-{
-    abort();
-}
-
 static NetClientInfo net_tap_win32_info = {
     .type = NET_CLIENT_DRIVER_TAP,
     .size = sizeof(TAPState),
     .receive = tap_receive,
     .cleanup = tap_cleanup,
-    .has_ufo = tap_has_ufo,
-    .has_vnet_hdr = tap_has_vnet_hdr,
-    .has_vnet_hdr_len = tap_has_vnet_hdr_len,
-    .using_vnet_hdr = tap_using_vnet_hdr,
-    .set_offload = tap_set_offload,
-    .set_vnet_hdr_len = tap_set_vnet_hdr_len,
 };
 
 static int tap_win32_init(NetClientState *peer, const char *model,

---
base-commit: 5d1fc614413b10dd94858b07a1b2e26b1aa0296c
change-id: 20240212-tap-51087194c8eb

Best regards,
-- 
Akihiko Odaki <akihiko.odaki@daynix.com>