net/ice: fix VLAN filter with PF

net/ice: fix VLAN filter with PF

The macro flag DEV_RX_OFFLOAD_VLAN_FILTER is used to enable/disable
Rx VLAN filter, but not Tx VLAN filter. Therefore, Tx VLAN filter
should not be enabled/disabled in function ice_vsi_config_vlan_filter
called after checking DEV_RX_OFFLOAD_VLAN_FILTER flag.

In addition, the kernel driver doesn't enable/disable the TX VLAN
filter in the similar function ice_cfg_vlan_pruning.

This patch removes the setting about the TX VLAN filter in function
ice_vsi_config_vlan_filter.

Fixes: e0dcf94a0d7f ("net/ice: support VLAN ops")
Cc: stable@dpdk.org
Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Tested-by: Zhimin Huang <zhiminx.huang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>