Delete old clib items

build.rs

@@ -1,16 +0,0 @@
-extern crate cbindgen;
-
-use std::env;
-use std::path::Path;
-use cbindgen::{Config, Builder};
-
-fn main() {
-    let crate_env = env::var("CARGO_MANIFEST_DIR").unwrap();
-    let crate_path = Path::new(&crate_env);
-    let config = Config::from_root_or_default(crate_path);
-    Builder::new().with_crate(crate_path.to_str().unwrap())
-        .with_config(config)
-        .generate()
-        .expect("Cannot generate header file!")
-        .write_to_file("libdla.h");
-}

libdla.h

@@ -1,11 +0,0 @@
-#include <cstdarg>
-#include <cstdint>
-#include <cstdlib>
-#include <ostream>
-#include <new>
-
-extern "C" {
-
-bool dla_rust_disabled();
-
-} // extern "C"