net: dsa: microchip: Remove unused declarations

Commit 91a98917 ("net: dsa: microchip: move switch chip_id detection to ksz_common")
removed ksz8_switch_detect() but not its declaration.
Commit 6ec23aaa ("net: dsa: microchip: move ksz_dev_ops to ksz_common.c")
declared but never implemented other functions.
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20230821125501.19624-1-yuehaibing@huawei.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/dsa/microchip/ksz8.h

@@ -48,13 +48,11 @@ int ksz8_port_mirror_add(struct ksz_device *dev, int port,
 			 bool ingress, struct netlink_ext_ack *extack);
 void ksz8_port_mirror_del(struct ksz_device *dev, int port,
 			  struct dsa_mall_mirror_tc_entry *mirror);
-int ksz8_get_stp_reg(void);
 void ksz8_get_caps(struct ksz_device *dev, int port,
 		   struct phylink_config *config);
 void ksz8_config_cpu_port(struct dsa_switch *ds);
 int ksz8_enable_stp_addr(struct ksz_device *dev);
 int ksz8_reset_switch(struct ksz_device *dev);
-int ksz8_switch_detect(struct ksz_device *dev);
 int ksz8_switch_init(struct ksz_device *dev);
 void ksz8_switch_exit(struct ksz_device *dev);
 int ksz8_change_mtu(struct ksz_device *dev, int port, int mtu);

drivers/net/dsa/microchip/ksz9477.h

@@ -36,7 +36,6 @@ int ksz9477_port_mirror_add(struct ksz_device *dev, int port,
 			    bool ingress, struct netlink_ext_ack *extack);
 void ksz9477_port_mirror_del(struct ksz_device *dev, int port,
 			     struct dsa_mall_mirror_tc_entry *mirror);
-int ksz9477_get_stp_reg(void);
 void ksz9477_get_caps(struct ksz_device *dev, int port,
 		      struct phylink_config *config);
 int ksz9477_fdb_dump(struct ksz_device *dev, int port,
@@ -54,7 +53,6 @@ void ksz9477_config_cpu_port(struct dsa_switch *ds);
 int ksz9477_tc_cbs_set_cinc(struct ksz_device *dev, int port, u32 val);
 int ksz9477_enable_stp_addr(struct ksz_device *dev);
 int ksz9477_reset_switch(struct ksz_device *dev);
-int ksz9477_dsa_init(struct ksz_device *dev);
 int ksz9477_switch_init(struct ksz_device *dev);
 void ksz9477_switch_exit(struct ksz_device *dev);
 void ksz9477_port_queue_split(struct ksz_device *dev, int port);