GSD-2021-1000013 kasan: remove redundant config option

kasan: remove redundant config option This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.11.16 by commit 86463b30e4ef70c4551a94cb68b5a667c2e0084...