Remove the timestamp pallet

It was needed for contracts, which has since been removed. We now no longer
need it.

substrate/node/Cargo.toml

@@ -27,7 +27,6 @@ sp-application-crypto = { git = "https://github.com/serai-dex/substrate" }
 sp-keystore = { git = "https://github.com/serai-dex/substrate" }
 sp-keyring = { git = "https://github.com/serai-dex/substrate" }
 sp-inherents = { git = "https://github.com/serai-dex/substrate" }
-sp-timestamp = { git = "https://github.com/serai-dex/substrate" }
 sp-runtime = { git = "https://github.com/serai-dex/substrate" }
 sp-blockchain = { git = "https://github.com/serai-dex/substrate" }
 sp-api = { git = "https://github.com/serai-dex/substrate" }

substrate/node/src/command_helper.rs

@@ -1,8 +1,8 @@
-use std::{sync::Arc, time::Duration};
+use std::sync::Arc;
 
 use sp_core::{Encode, Pair};
 use sp_keyring::Sr25519Keyring;
-use sp_inherents::{InherentData, InherentDataProvider};
+use sp_inherents::InherentData;
 
 use sp_runtime::OpaqueExtrinsic;
 
@@ -87,11 +87,5 @@ pub fn create_benchmark_extrinsic(
 }
 
 pub fn inherent_benchmark_data() -> Result<InherentData> {
-  let mut inherent_data = InherentData::new();
-  futures::executor::block_on(
-    sp_timestamp::InherentDataProvider::new(Duration::from_millis(0).into())
-      .provide_inherent_data(&mut inherent_data),
-  )
-  .map_err(|e| format!("creating inherent data: {e:?}"))?;
-  Ok(inherent_data)
+  Ok(InherentData::new())
 }

substrate/node/src/service.rs

@@ -57,13 +57,13 @@ impl NativeExecutionDispatch for ExecutorDispatch {
 pub struct Cidp;
 #[async_trait::async_trait]
 impl CreateInherentDataProviders<Block, ()> for Cidp {
-  type InherentDataProviders = (sp_timestamp::InherentDataProvider,);
+  type InherentDataProviders = ();
   async fn create_inherent_data_providers(
     &self,
     _: <Block as BlockTrait>::Hash,
     _: (),
   ) -> Result<Self::InherentDataProviders, Box<dyn Send + Sync + Error>> {
-    Ok((sp_timestamp::InherentDataProvider::from_system_time(),))
+    Ok(())
   }
 }