Description of problem:
After installing viogpudo driver for virtio-vga&virtio-gpu-PCI devices, there are two cursors in the guest. after discussion with the manager, this issue should be opened because this issue causes the user experience to be particularly poor, and customers are easy to report the bug.

Version-Release number of selected component (if applicable):

How reproducible:
100%

Steps to Reproduce:
1.bootup guest with following qemu command line
/usr/libexec/qemu-kvm -name 204GPU103235RNZ -enable-kvm -m 4G -smp 4 -uuid a21544d0-f972-4f86-a65f-8e45139d3e28 -nodefaults -cpu Skylake-Server,hv_stimer,hv_synic,hv_time,hv_vpindex,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_frequencies,hv_runtime,hv_tlbflush,hv_reenlightenment,hv_stimer_direct,hv_ipi -chardev socket,id=charmonitor,path=/tmp/204GPU103235RNZ,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime,driftfix=slew -boot order=cd,menu=on -device piix3-usb-uhci,id=usb -blockdev driver=file,cache.direct=off,cache.no-flush=on,filename=204GPU103235RNZ,node-name=my_file -blockdev driver=raw,node-name=my,file=my_file -device ide-hd,drive=my,id=ide0-0-0,bus=ide.0,unit=0 -blockdev driver=file,cache.direct=off,cache.no-flush=on,filename=/home/kvm_autotest_root/iso/ISO/Win10/en_windows_10_business_editions_version_21h1_x86_dvd_1495793c.iso,node-name=my_cd,read-only=on -blockdev driver=raw,node-name=mycd,file=my_cd,read-only=on -device ide-cd,drive=mycd,id=ide0-1-0,bus=ide.1,unit=0 -blockdev driver=file,cache.direct=off,cache.no-flush=on,filename=204GPU103235RNZ.iso,node-name=my_iso,read-only=on -blockdev driver=raw,node-name=myiso,file=my_iso,read-only=on -device ide-cd,drive=myiso,id=ide0-1-1 -device usb-tablet,id=input0 -vnc 0.0.0.0:0 -M q35 -device pcie-root-port,bus=pcie.0,id=root1.0,multifunction=on,port=0x10,chassis=1,addr=0x7 -device pcie-root-port,bus=pcie.0,id=root2.0,port=0x11,chassis=2,addr=0x7.0x1 -netdev tap,script=/etc/qemu-ifup,downscript=no,id=hostnet0 -device e1000e,bus=root1.0,netdev=hostnet0,id=net0,mac=00:52:2e:72:7a:3e -device virtio-vga,id=video0,edid=off -device virtio-gpu-pci,id=gpu0,bus=root2.0 -global ICH9-LPC.disable_s3=1 -global ICH9-LPC.disable_s4=1
2. install virtio-win-prewhql-203/204.iso viogpudo driver
3. do some basic interactions with guest.

Actual results:
Two cursors are really inconvenient.
Expected results:
Just one cursor in guest.

Additional info: