Make use of parity-codec "derive" crate feature (#1919)

* Make use of parity-codec "derive" crate feature

* Bump impl_version

* Update wasm files and Cargo.lock files

* Transferred to parity_codec derive feature for the rest of the crates

* Update wasm binaries and lock files

* Update core and node wasm binaries

substrate/srml/aura/src/lib.rs

@@ -27,9 +27,7 @@ use primitives::traits::{As, Zero};
 use timestamp::OnTimestampSet;
 #[cfg(feature = "std")]
 use timestamp::TimestampInherentData;
-#[cfg(feature = "std")]
-use parity_codec::Decode;
-use parity_codec_derive::{Encode, Decode};
+use parity_codec::{Encode, Decode};
 use inherents::{RuntimeString, InherentIdentifier, InherentData, ProvideInherent, MakeFatalError};
 #[cfg(feature = "std")]
 use inherents::{InherentDataProviders, ProvideInherentData};