Remove prerelease workaround

Resolves: #455

src/advisories.rs

@@ -81,40 +81,6 @@ pub fn check<R>(
             ctx.krates, pkg,
         ) {
             Some((i, krate)) => {
-                // This is a workaround for https://github.com/steveklabnik/semver/issues/172,
-                // it's not strictly correct so we do emit a warning to notify the user
-                // (though to be honest most people only run cargo-deny in CI and won't notice)
-                if let Some(versions) = versions {
-                    if !krate.version.pre.is_empty() {
-                        let rematch = semver::Version::new(
-                            krate.version.major,
-                            krate.version.minor,
-                            krate.version.patch,
-                        );
-
-                        // Patches are usually (always) specified in ascending order,
-                        // so we walk them in reverse to get the closest patch that
-                        // may apply to the crate version in question
-                        for patched in versions.patched().iter().rev() {
-                            if patched.matches(&rematch) {
-                                let skipped_diag =
-                                    ctx.diag_for_prerelease_skipped(krate, i, advisory, patched);
-                                sink.push(skipped_diag);
-                                return;
-                            }
-                        }
-
-                        for unaffected in versions.unaffected().iter().rev() {
-                            if unaffected.matches(&rematch) {
-                                let skipped_diag =
-                                    ctx.diag_for_prerelease_skipped(krate, i, advisory, unaffected);
-                                sink.push(skipped_diag);
-                                return;
-                            }
-                        }
-                    }
-                }
-
                 let diag = ctx.diag_for_advisory(krate, i, advisory, versions, |index| {
                     ignore_hits.as_mut_bitslice().set(index, true);
                 });

src/advisories/diags.rs

@@ -227,39 +227,4 @@ impl<'a> crate::CheckCtx<'a, super::cfg::ValidConfig> {
         )
             .into()
     }
-
-    pub(crate) fn diag_for_prerelease_skipped(
-        &self,
-        krate: &crate::Krate,
-        krate_index: krates::NodeId,
-        advisory: &Metadata,
-        matched: &semver::VersionReq,
-    ) -> Pack {
-        let mut pack = Pack::with_kid(Check::Advisories, krate.id.clone());
-
-        let notes = {
-            let mut n = vec![format!("ID: {}", advisory.id)];
-            if let Some(url) = advisory.id.url() {
-                n.push(format!("Advisory: {url}"));
-            }
-
-            n.push(format!("Satisfied version requirement: {matched}"));
-
-            n
-        };
-
-        pack.push(
-            Diagnostic::new(Severity::Warning)
-                .with_message(
-                    "advisory for a crate with a pre-release was skipped as it matched a patch",
-                )
-                .with_code("A009")
-                .with_notes(notes)
-                .with_labels(vec![self
-                    .krate_spans
-                    .label_for_index(krate_index.index(), "pre-release crate")]),
-        );
-
-        pack
-    }
 }