remove gen_flutter_rust_bridge in build.rs

Cargo.toml

@@ -164,7 +164,6 @@ winapi = { version = "0.3", features = [ "winnt" ] }
 [build-dependencies]
 cc = "1.0"
 hbb_common = { path = "libs/hbb_common" }
-flutter_rust_bridge_codegen = "=1.75"
 os-version = "0.2"
 
 [dev-dependencies]

build.rs

@@ -76,52 +76,12 @@ fn install_oboe() {
     //cc::Build::new().file("oboe.cc").include(include).compile("oboe_wrapper");
 }
 
-#[cfg(feature = "flutter")]
-fn gen_flutter_rust_bridge() {
-    if !std::env::var("RUN_FFIGEN").is_ok() {
-        return;
-    }
-    use lib_flutter_rust_bridge_codegen::{
-        config_parse, frb_codegen, get_symbols_if_no_duplicates, RawOpts,
-    };
-    let llvm_path = match std::env::var("LLVM_HOME") {
-        Ok(path) => Some(vec![path]),
-        Err(_) => None,
-    };
-    // Tell Cargo that if the given file changes, to rerun this build script.
-    println!("cargo:rerun-if-changed=src/flutter_ffi.rs");
-    // Options for frb_codegen
-    let raw_opts = RawOpts {
-        // Path of input Rust code
-        rust_input: vec!["src/flutter_ffi.rs".to_string()],
-        // Path of output generated Dart code
-        dart_output: vec!["flutter/lib/generated_bridge.dart".to_string()],
-        // Path of output generated C header
-        c_output: Some(vec!["flutter/macos/Runner/bridge_generated.h".to_string()]),
-        /// Path to the installed LLVM
-        llvm_path,
-        // for other options use defaults
-        ..Default::default()
-    };
-    // get opts from raw opts
-    let configs = config_parse(raw_opts);
-    // generation of rust api for ffi
-    let all_symbols = get_symbols_if_no_duplicates(&configs).unwrap();
-    for config in configs.iter() {
-        frb_codegen(config, &all_symbols).unwrap();
-    }
-}
-
 fn main() {
     hbb_common::gen_version();
     install_oboe();
     // there is problem with cfg(target_os) in build.rs, so use our workaround
     // let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
     // if target_os == "android" || target_os == "ios" {
-    #[cfg(feature = "flutter")]
-    gen_flutter_rust_bridge();
-    //     return;
-    // }
     #[cfg(all(windows, feature = "inline"))]
     build_manifest();
     #[cfg(windows)]