staging: rtl8188eu: Remove no more used functions and variables

Remove the functions and variables from rtw_security.c that are no more
necessary since the patch that replaces getcrc32() with crc32_le().
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20210723192620.10669-3-fmdefrancesco@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_security.c

@@ -76,42 +76,6 @@ static void arcfour_encrypt(struct arc4context *parc4ctx, u8 *dest, u8 *src, u32
 		dest[i] = src[i] ^ (unsigned char)arcfour_byte(parc4ctx);
 }
 
-static int bcrc32initialized;
-static u32 crc32_table[256];
-
-static u8 crc32_reverseBit(u8 data)
-{
-	return (u8)((data << 7) & 0x80) | ((data << 5) & 0x40) | ((data << 3) & 0x20) |
-		   ((data << 1) & 0x10) | ((data >> 1) & 0x08) | ((data >> 3) & 0x04) |
-		   ((data >> 5) & 0x02) | ((data >> 7) & 0x01);
-}
-
-static void crc32_init(void)
-{
-	int i, j;
-	u32 c;
-	u8 *p = (u8 *)&c, *p1;
-	u8 k;
-
-	if (bcrc32initialized == 1)
-		return;
-
-	c = 0x12340000;
-
-	for (i = 0; i < 256; ++i) {
-		k = crc32_reverseBit((u8)i);
-		for (c = ((u32)k) << 24, j = 8; j > 0; --j)
-			c = c & 0x80000000 ? (c << 1) ^ CRC32_POLY : (c << 1);
-		p1 = (u8 *)&crc32_table[i];
-
-		p1[0] = crc32_reverseBit(p[3]);
-		p1[1] = crc32_reverseBit(p[2]);
-		p1[2] = crc32_reverseBit(p[1]);
-		p1[3] = crc32_reverseBit(p[0]);
-	}
-	bcrc32initialized = 1;
-}
-
 /* Need to consider the fragment  situation */
 void rtw_wep_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
 {