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

src/database/mod.rs

@@ -3,11 +3,8 @@
 extern crate conduwuit_core as conduwuit;
 extern crate rust_rocksdb as rocksdb;
 
-use ctor::{ctor, dtor};
-
 conduwuit::mod_ctor! {}
 conduwuit::mod_dtor! {}
-conduwuit::rustc_flags_capture! {}
 
 #[cfg(test)]
 mod benches;