Disable quads-based crc32.
Disable quads-based crc32.

On some systems it seems to produce incorrect checksums.

tempbottle/HyperLevelDB,dyu-deploy/HyperLevelDB,tempbottle/HyperLevelDB,norton/HyperLevelDB,yonglehou/HyperLevelDB,dyu-deploy/HyperLevelDB,norton/HyperLevelDB,rescrv/HyperLevelDB,rescrv/HyperLevelDB,yonglehou/HyperLevelDB