stop autogenerating the header

deltachat-ffi/build.rs

@@ -1,23 +0,0 @@
-fn main() {
-    let crate_dir = std::env::var("CARGO_MANIFEST_DIR").unwrap();
-
-    let cfg = cbindgen::Config::from_root_or_default(std::path::Path::new(&crate_dir));
-
-    let c = cbindgen::Builder::new()
-        .with_config(cfg)
-        .with_crate(crate_dir)
-        .with_language(cbindgen::Language::C)
-        .generate();
-
-    // This is needed to ensure we don't panic if there are errors in the crates code
-    // but rather just tell the rest of the system we can't proceed.
-    match c {
-        Ok(res) => {
-            res.write_to_file("deltachat.h");
-        }
-        Err(err) => {
-            eprintln!("unable to generate bindings: {:#?}", err);
-            std::process::exit(1);
-        }
-    }
-}