staging: r8188eu: remove unused macros

Remove LE_BITS_TO_1BYTE and relevant macros because they are not used
anywhere.
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Nam Cao <namcaov@gmail.com>
Link: https://lore.kernel.org/r/a7f700c0688a16bb697fb693894f4c16594fd483.1655220367.git.namcaov@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/basic_types.h

@@ -13,37 +13,6 @@ typedef void (*proc_t)(void *);
 /*  TODO: Macros Below are Sync from SD7-Driver. It is necessary
  * to check correctness */
 
-/*
- *	Call endian free function when
- *		1. Read/write packet content.
- *		2. Before write integer to IO.
- *		3. After read integer from IO.
-*/
-
-/* Convert little data endian to host ordering */
-#define EF1BYTE(_val)		\
-	((u8)(_val))
-
-/* Create a bit mask  */
-#define BIT_LEN_MASK_8(__bitlen) \
-	(0xFF >> (8 - (__bitlen)))
-
-/*Description:
- * Return 4-byte value in host byte ordering from
- * 4-byte pointer in little-endian system.
- */
-#define LE_P1BYTE_TO_HOST_1BYTE(__pstart) \
-	(EF1BYTE(*((u8 *)(__pstart))))
-
-/*Description:
-Translate subfield (continuous bits in little-endian) of 4-byte
-value to host byte ordering.*/
-#define LE_BITS_TO_1BYTE(__pstart, __bitoffset, __bitlen) \
-	( \
-		(LE_P1BYTE_TO_HOST_1BYTE(__pstart) >> (__bitoffset)) & \
-		BIT_LEN_MASK_8(__bitlen) \
-	)
-
 #define	N_BYTE_ALIGMENT(__value, __aligment) ((__aligment == 1) ? \
 	(__value) : (((__value + __aligment - 1) / __aligment) * __aligment))