remove -Zbuild-std which not required on docs.rs

Author: unkcpz

Cargo.toml

@@ -80,4 +80,3 @@ whoami = "1.5"
 default-target = "x86_64-unknown-linux-gnu"
 targets = ["x86_64-unknown-linux-gnu", "aarch64-apple-darwin", "aarch64-apple-ios", "x86_64-pc-windows-msvc"]
 features = ["apple-native", "windows-native", "linux-native-sync-persistent", "crypto-rust"]
-cargo-args = ["-Z", "build-std"]