[Bug libgcc/125190] Stale documentation of __stack_chk_guard

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125190

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
TARGET_LIBC_PROVIDES_SSP is defined to 1 if the C library provides stack
protector.
In this case, libssp is unused.