remove unnecessary serde serialization

frame/vesting-mangata/src/vesting_info.rs

@@ -16,15 +16,11 @@
 // limitations under the License.
 
 //! Module to enforce private fields on `VestingInfo`.
-#[cfg(feature = "std")]
-use sp_runtime::serde::{Deserialize, Serialize};
 
 use super::*;
 
 /// Struct to encode the vesting schedule of an individual account.
 #[derive(Encode, Decode, Copy, Clone, PartialEq, Eq, MaxEncodedLen, RuntimeDebug, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
-#[cfg_attr(feature = "std", serde(rename_all = "camelCase"))]
 pub struct VestingInfo<Balance, BlockNumber> {
 	/// Locked amount at genesis.
 	locked: Balance,