staging: r8188eu: Remove unused macros

Simple variants of macros PlatformEFIOWrite and PlatformEFIORead are
defined but never used. As they do not appear to be designed for anything
significant, we can remove them to avoid unexpected usage.
Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Deepak R Varma <drv@mailo.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/efaf637a14b6f7fdd0178e2aecf8abf17e6922f6.1666299151.git.drv@mailo.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/rtw_io.h

@@ -285,18 +285,4 @@ void bus_sync_io(struct io_queue *pio_q);
 u32 _ioreq2rwmem(struct io_queue *pio_q);
 void dev_power_down(struct adapter *Adapter, u8 bpwrup);
 
-#define PlatformEFIOWrite1Byte(_a, _b, _c)		\
-	rtw_write8(_a, _b, _c)
-#define PlatformEFIOWrite2Byte(_a, _b, _c)		\
-	rtw_write16(_a, _b, _c)
-#define PlatformEFIOWrite4Byte(_a, _b, _c)		\
-	rtw_write32(_a, _b, _c)
-
-#define PlatformEFIORead1Byte(_a, _b)		\
-		rtw_read8(_a, _b)
-#define PlatformEFIORead2Byte(_a, _b)		\
-		rtw_read16(_a, _b)
-#define PlatformEFIORead4Byte(_a, _b)		\
-		rtw_read32(_a, _b)
-
 #endif	/* _RTL8711_IO_H_ */