Remove feature alloc

Author: ashWhiteHat

core/bellman-verifier/src/lib.rs

@@ -1,5 +1,4 @@
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(not(feature = "std"), feature(alloc))]
 
 #[cfg(not(feature = "std"))]
 #[macro_use]

core/crypto/src/lib.rs

@@ -1,5 +1,4 @@
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(not(feature = "std"), feature(alloc))]
 
 #[cfg(not(feature = "std"))]
 #[macro_use]

core/jubjub/src/lib.rs

@@ -1,5 +1,4 @@
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(not(feature = "std"), feature(alloc))]
 
 #[cfg(not(feature = "std"))]
 #[macro_use]

core/keys/src/lib.rs

@@ -1,7 +1,6 @@
 //! Zerochain key components.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(not(feature = "std"), feature(alloc))]
 
 #[cfg(not(feature = "std"))]
 #[macro_use]

core/pairing/src/lib.rs

@@ -1,5 +1,4 @@
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(not(feature = "std"), feature(alloc))]
 
 // `clippy` is a code linting tool for improving code quality by catching
 // common mistakes or strange code patterns. If the `clippy` feature is

core/primitives/src/lib.rs

@@ -1,5 +1,4 @@
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(not(feature = "std"), feature(alloc))]
 
 #[cfg(not(feature = "std"))]
 #[macro_use]

runtime/src/lib.rs

@@ -2,7 +2,6 @@
 
 // Ensure we're `no_std` when compiling for Wasm.
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(not(feature = "std"), feature(alloc))]
 // `construct_runtime!` does a lot of recursion and requires us to increase the limit to 256.
 #![recursion_limit="256"]