[Bug debug/121763] Disable -gstatement-frontiers, -gvariable-location-views by default

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121763

--- Comment #5 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Sam James from comment #2)
> I'll test gdb next.

No changes, just one timeout in gdb.mi/mi-multi-commands.exp.