ARM: ep93xx: soc: drop defines

Remove unnecessary defines, as we dropped board files.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: maquefel

include/linux/platform_data/eth-ep93xx.h

@@ -2,7 +2,6 @@
 #ifndef _SOC_EP93XX_H
 #define _SOC_EP93XX_H
 
-struct platform_device;
 struct regmap;
 struct spinlock_t;
 
@@ -36,16 +35,4 @@ struct ep93xx_regmap_adev {
 #define to_ep93xx_regmap_adev(_adev) \
 	container_of((_adev), struct ep93xx_regmap_adev, adev)
 
-#ifdef CONFIG_ARCH_EP93XX
-int ep93xx_i2s_acquire(void);
-void ep93xx_i2s_release(void);
-unsigned int ep93xx_chip_revision(void);
-
-#else
-static inline int ep93xx_i2s_acquire(void) { return 0; }
-static inline void ep93xx_i2s_release(void) {}
-static inline unsigned int ep93xx_chip_revision(void) { return 0; }
-
-#endif
-
 #endif