CVE-2023-53642 x86: fix clear_user_rep_good() exception handling annotation

In the Linux kernel, the following vulnerability has been resolved: x86: fix clearuserrepgood exception handling annotation This code no longer exists in mainline, because it was removed in commit d2c95f9d6802 "x86: don't use REPGOOD or ERMS for user memory clearing" upstream. However, rather tha...