mlxsw: spectrum: Don't abort on first error when removing VLANs

When removing VLANs from the VLAN-aware bridge we shouldn't abort on the
first error, as we'll otherwise have resources that will never be freed.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>