refactor(treewide): get rid of compile time build environment introspection

It's cursed and not very useful. Still a few uses of ctor left, but oh well.

src/database/Cargo.toml

@@ -64,7 +64,6 @@ serde.workspace = true
 serde_json.workspace = true
 tokio.workspace = true
 tracing.workspace = true
-ctor.workspace = true
 
 [lints]
 workspace = true