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cleanup(rustc_trait_selection): remove vestigial code from rustc_on_unimplemented

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This isn't allowed by the validator, and seems to be unused.
When it was added in ed10a3faae,
it was used on `Sized`, and that usage is gone.
This commit is contained in:
Michael Howell 2021-09-11 16:41:14 -07:00
parent 641e02f388
commit e1873ba007
2 changed files with 0 additions and 4 deletions
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1
compiler/rustc_span/src/symbol.rs
View File

@ -934,7 +934,6 @@ symbols! {
panic_unwind,
panicking,
param_attrs,
parent_trait,
partial_cmp,
partial_ord,
passes,

3
compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs
View File

@ -154,9 +154,6 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
flags.push((sym::from_method, Some(method.to_string())));
}
}
if let Some((t, _)) = self.get_parent_trait_ref(&obligation.cause.code) {
flags.push((sym::parent_trait, Some(t)));
}
if let Some(k) = obligation.cause.span.desugaring_kind() {
flags.push((sym::from_desugaring, None));