Removed crc32 code - use zlib's instead

This was SVN commit r687.

source/lib/crc32.cpp

@@ -1,49 +0,0 @@
-// $Id: crc32.cpp,v 1.1 2004/07/08 15:21:21 philip Exp $
-
-#include "precompiled.h"
-
-// CRC32, based on code copied from anywhere on the internet.
-// Find a thousand possible sources at
-// http://www.google.com/search?q=0xEDB88320L
-
-unsigned long crc_table[256];
-
-int generate_table()
-{
-	unsigned long crc;
-	int	i, j;
-
-	const unsigned long poly = 0xEDB88320L; // magic
-
-	for (i = 0; i < 256; ++i)
-	{
-		crc = i;
-		for (j = 0; j < 8; ++j)
-		{
-			if (crc & 1)
-				crc = (crc >> 1) ^ poly;
-			else
-				crc >>= 1;
-		}
-		crc_table[i] = crc;
-	}
-	return 0;
-}
-
-
-unsigned long crc32_calculate(char* data, int len)
-{
-	// Only calculate the table once
-	static int _temp = generate_table();
-
-	unsigned long crc;
-
-	crc = ~0;
-	while (len)
-	{
-		crc = (crc>>8) ^ crc_table[ (crc^*data) & 0xff ];
-		--len; ++data;
-	}
-
-	return ~crc;
-}

source/lib/crc32.h

@@ -1,4 +0,0 @@
-// $Id: crc32.h,v 1.1 2004/07/08 15:21:21 philip Exp $
-
-// I don't think this really needs any documentation
-unsigned long crc32_calculate(char* data, int len);