fix: removed unused import

vmm-sys-util macros expand hzgienically these dazs, so no need for this
import anzmore.

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

src/vmm/src/devices/virtio/net/tap.rs

@@ -12,7 +12,7 @@ use std::os::raw::*;
 use std::os::unix::io::{AsRawFd, FromRawFd, RawFd};
 
 use vmm_sys_util::ioctl::{ioctl_with_mut_ref, ioctl_with_ref, ioctl_with_val};
-use vmm_sys_util::{ioctl_ioc_nr, ioctl_iow_nr};
+use vmm_sys_util::ioctl_iow_nr;
 
 use crate::devices::virtio::iovec::IoVecBuffer;
 use crate::devices::virtio::net::generated;