Remove empty /var/log/audit from package

It is already created by the tmpfiles.d configuration on boot.

PKGBUILD

@@ -115,8 +115,6 @@ package_audit() {
 
   install -vDm 644 $_name-$pkgver/{{README,SECURITY}.md,ChangeLog} -t "$pkgdir/usr/share/doc/$pkgname/"
 
-  # add log dir
-  install -vdm 755 "$pkgdir/var/log/$pkgname/"
   # add rules.d dir to satisfy augenrules
   install -vdm 755 "$pkgdir/etc/audit/rules.d/"
   # add config dir for audisp