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/router/Cargo.toml

@@ -122,7 +122,6 @@ tokio.workspace = true
 tower.workspace = true
 tower-http.workspace = true
 tracing.workspace = true
-ctor.workspace = true
 
 [target.'cfg(all(unix, target_os = "linux"))'.dependencies]
 sd-notify.workspace = true

src/router/mod.rs

@@ -12,12 +12,10 @@ use std::{panic::AssertUnwindSafe, pin::Pin, sync::Arc};
 
 use conduwuit::{Error, Result, Server};
 use conduwuit_service::Services;
-use ctor::{ctor, dtor};
 use futures::{Future, FutureExt, TryFutureExt};
 
 conduwuit::mod_ctor! {}
 conduwuit::mod_dtor! {}
-conduwuit::rustc_flags_capture! {}
 
 #[unsafe(no_mangle)]
 pub extern "Rust" fn start(