Matthias Krüger 984e644432
Rollup merge of #91185 - camelid:rm-force-overflow-checks, r=wesleywiser
Remove `-Z force-overflow-checks`

It was replaced several years ago by the stable option `-C overflow-checks`.
The goal was to delete the `-Z` flag once users had migrated [1].
Now that it's been several years, it makes sense to delete the old flag.

See also the discussion on Zulip [2].

[1]: https://github.com/rust-lang/rust/issues/33134#issuecomment-280484097
[2]: https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/overflow.20checks/near/262497224

r? ```@wesleywiser```
cc ```@RalfJung```
2021-11-25 15:05:40 +01:00
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