Commit 57481e7

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clif: Don't set the compiler-builtins-no-f16-f128 feature

Since rust-lang/rust be35d37 ("Use the compiler to determine whether or not to enable f16 and f128"), `compiler-builtins` relies on `rustc` to report whether or not `f16` and `f128` are supported, which is reported by the backend. This means that there should no longer be any need to unconditionally disable the types for clif in Bootstrap. Backend config: https://github.com/rust-lang/rust/blob/a955f1cd09a027363729ceed919952d09f76f28e/compiler/rustc_codegen_cranelift/src/lib.rs#L224-L233

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Original file line number	Diff line number	Diff line change
`@@ -597,11 +597,6 @@ pub fn std_cargo(builder: &Builder<'_>, target: TargetSelection, stage: u32, car`
`597`	`597`
`598`	`598`	`let mut features = String::new();`
`599`	`599`
`600`		`- if stage != 0 && builder.config.default_codegen_backend(target).as_deref() == Some("cranelift")`
`601`		`- {`
`602`		`- features += "compiler-builtins-no-f16-f128 ";`
`603`		`- }`
`604`		`-`
`605`	`600`	`if builder.no_std(target) == Some(true) {`
`606`	`601`	`features += " compiler-builtins-mem";`
`607`	`602`	`if !target.starts_with("bpf") {`

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