Fix docs.rs build (#1696)

Author: alamb

parquet/Cargo.toml

@@ -63,7 +63,6 @@ arrow = { path = "../arrow", version = "13.0.0", default-features = false, featu
 
 [package.metadata.docs.rs]
 all-features = true
-rustdoc-args = ["--cfg", "doc_cfg"]
 
 [features]
 default = ["arrow", "snap", "brotli", "flate2", "lz4", "zstd", "base64"]

parquet/src/arrow/mod.rs

@@ -121,7 +121,6 @@ pub mod arrow_writer;
 mod bit_util;
 
 #[cfg(feature = "async")]
-#[cfg_attr(doc_cfg, doc(cfg(feature = "async")))]
 pub mod async_reader;
 
 experimental_mod!(converter);