Revert "net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime"

This reverts commit d43ef15b which is
commit 579d4f9c upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Ie05443f3a2fff17102c1854a849532b7ef121813
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>