net: dsa: tag_8021q: remove shim declarations

All users of tag_8021q select it in Kconfig, so shim functions are not
needed because it is not possible for it to be disabled and its callers
enabled.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/dsa/8021q.h

@@ -37,8 +37,6 @@ struct dsa_8021q_context {
 
 #define DSA_8021Q_N_SUBVLAN			8
 
-#if IS_ENABLED(CONFIG_NET_DSA_TAG_8021Q)
-
 int dsa_8021q_setup(struct dsa_8021q_context *ctx, bool enabled);
 
 int dsa_8021q_crosschip_bridge_join(struct dsa_8021q_context *ctx, int port,
@@ -70,78 +68,4 @@ bool vid_is_dsa_8021q_txvlan(u16 vid);
 
 bool vid_is_dsa_8021q(u16 vid);
 
-#else
-
-int dsa_8021q_setup(struct dsa_8021q_context *ctx, bool enabled)
-{
-	return 0;
-}
-
-int dsa_8021q_crosschip_bridge_join(struct dsa_8021q_context *ctx, int port,
-				    struct dsa_8021q_context *other_ctx,
-				    int other_port)
-{
-	return 0;
-}
-
-int dsa_8021q_crosschip_bridge_leave(struct dsa_8021q_context *ctx, int port,
-				     struct dsa_8021q_context *other_ctx,
-				     int other_port)
-{
-	return 0;
-}
-
-struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
-			       u16 tpid, u16 tci)
-{
-	return NULL;
-}
-
-u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port)
-{
-	return 0;
-}
-
-u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port)
-{
-	return 0;
-}
-
-u16 dsa_8021q_rx_vid_subvlan(struct dsa_switch *ds, int port, u16 subvlan)
-{
-	return 0;
-}
-
-int dsa_8021q_rx_switch_id(u16 vid)
-{
-	return 0;
-}
-
-int dsa_8021q_rx_source_port(u16 vid)
-{
-	return 0;
-}
-
-u16 dsa_8021q_rx_subvlan(u16 vid)
-{
-	return 0;
-}
-
-bool vid_is_dsa_8021q_rxvlan(u16 vid)
-{
-	return false;
-}
-
-bool vid_is_dsa_8021q_txvlan(u16 vid)
-{
-	return false;
-}
-
-bool vid_is_dsa_8021q(u16 vid)
-{
-	return false;
-}
-
-#endif /* IS_ENABLED(CONFIG_NET_DSA_TAG_8021Q) */
-
 #endif /* _NET_DSA_8021Q_H */