qcacmn: Code movement to enable multipass support without WDS

Currently the code to support Multipass on SAP is
present along with the code to support WDS. Hence with
the code in its current state, we will not be able to
enable Multipass support without enabling WDS.

Move the multipass support code out of the WDS support
code, to be able to enable Multipass for chipsets which
do not use WDS.

Change-Id: Id17035f1ada9bde56ca2c61fd4688fa3454b0b11
CRs-Fixed: 3479991

dp/wifi3.0/dp_tx.h

@@ -766,15 +766,6 @@ bool dp_tx_multipass_process(struct dp_soc *soc, struct dp_vdev *vdev,
  */
 void dp_tx_vdev_multipass_deinit(struct dp_vdev *vdev);
 
-/**
- * dp_tx_remove_vlan_tag() - Remove 4 bytes of vlan tag
- * @vdev: DP vdev handle
- * @nbuf: network buffer
- *
- * Return: void
- */
-void dp_tx_remove_vlan_tag(struct dp_vdev *vdev, qdf_nbuf_t nbuf);
-
 /**
  * dp_tx_add_groupkey_metadata() - Add group key in metadata
  * @vdev: DP vdev handle