[build] Scrub the cleaners

Addendum to 52d23db, 3bc554e and 933b732.

1. Removed packaging folder from root\clean.bat per PR virtio-win#1209.

Signed-off-by: benyamin-codez <115509179+benyamin-codez@users.noreply.github.com>

clean.bat

@@ -3,7 +3,7 @@ if "%~1"=="-quiet" (set loglevel=0)
 if "%~1"=="-debug" (set loglevel=2)
 if "%~1"=="" (set loglevel=1)
 set _cln_tgt_=Repo Root
-set _cln_subdirs_=NetKVM viostor vioscsi VirtIO Balloon vioserial viorng vioinput viofs pvpanic viosock viogpu viomem viocrypt ivshmem pciserial Q35 packaging fwcfg fwcfg64
+set _cln_subdirs_=NetKVM viostor vioscsi VirtIO Balloon vioserial viorng vioinput viofs pvpanic viosock viogpu viomem viocrypt ivshmem pciserial Q35 fwcfg fwcfg64
 echo Cleaning %_cln_tgt_% ...
 call .\build\clean.bat %*
 echo.