Wire local TDLib into iOS FFI build

scripts/check-ios-tdlib-linking.sh

@@ -5,10 +5,4 @@ if [[ -z "${DEVELOPER_DIR:-}" && -d /Applications/Xcode.app/Contents/Developer ]
   export DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer
 fi
 
-target="${IOS_RUST_TARGET:-aarch64-apple-ios-sim}"
-
-if ! rustup target list --installed | grep -qx "${target}"; then
-  rustup target add "${target}"
-fi
-
-cargo build -p tele-ios-ffi --target "${target}" --release
+exec "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/build-ios-ffi-with-local-tdlib.sh"