Update Pallet placeholder struct as per FRAME v2 (#14348)

* Update Pallet placeholder struct as per FRAME v3

* ".git/.scripts/commands/fmt/fmt.sh"

* Update lib.rs

Removed the unused import

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Co-authored-by: command-bot <>

substrate/frame/contracts/src/lib.rs

@@ -129,7 +129,7 @@ use pallet_contracts_primitives::{
 use scale_info::TypeInfo;
 use smallvec::Array;
 use sp_runtime::traits::{Convert, Hash, Saturating, StaticLookup, Zero};
-use sp_std::{fmt::Debug, marker::PhantomData, prelude::*};
+use sp_std::{fmt::Debug, prelude::*};
 
 pub use crate::{
 	address::{AddressGenerator, DefaultAddressGenerator},
@@ -191,7 +191,7 @@ pub mod pallet {
 
 	#[pallet::pallet]
 	#[pallet::storage_version(STORAGE_VERSION)]
-	pub struct Pallet<T>(PhantomData<T>);
+	pub struct Pallet<T>(_);
 
 	#[pallet::config]
 	pub trait Config: frame_system::Config {