mac80211: ath9k: remove gpio buttons support

This is only used by mach files, which are no longer used in OpenWrt.

Allows removing a custon ath9k_platform.h file.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17445
Signed-off-by: Robert Marko <robimarko@gmail.com>

target/linux/generic/files/include/linux/ath9k_platform.h

@@ -1,55 +0,0 @@
-/*
- * Copyright (c) 2008 Atheros Communications Inc.
- * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef _LINUX_ATH9K_PLATFORM_H
-#define _LINUX_ATH9K_PLATFORM_H
-
-#define ATH9K_PLAT_EEP_MAX_WORDS	2048
-
-struct ath9k_platform_data {
-	const char *eeprom_name;
-
-	u16 eeprom_data[ATH9K_PLAT_EEP_MAX_WORDS];
-	u8 *macaddr;
-
-	int led_pin;
-	u32 gpio_mask;
-	u32 gpio_val;
-
-	u32 bt_active_pin;
-	u32 bt_priority_pin;
-	u32 wlan_active_pin;
-
-	bool endian_check;
-	bool is_clk_25mhz;
-	bool tx_gain_buffalo;
-	bool disable_2ghz;
-	bool disable_5ghz;
-	bool led_active_high;
-
-	int (*get_mac_revision)(void);
-	int (*external_reset)(void);
-
-	bool use_eeprom;
-
-	unsigned num_btns;
-	const struct gpio_keys_button *btns;
-	unsigned btn_poll_interval;
-};
-
-#endif /* _LINUX_ATH9K_PLATFORM_H */