node-template: remove redundant types from runtime (#9161)

Removes `BlockId`, `SignedBlock` and `CheckedExtrinsic` as they are
unused within the runtime currently and the `BlockId` was defined twice.

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

substrate/bin/node-template/runtime/src/lib.rs

@@ -298,10 +298,6 @@ pub type Address = sp_runtime::MultiAddress<AccountId, ()>;
 pub type Header = generic::Header<BlockNumber, BlakeTwo256>;
 /// Block type as expected by this runtime.
 pub type Block = generic::Block<Header, UncheckedExtrinsic>;
-/// A Block signed with a Justification
-pub type SignedBlock = generic::SignedBlock<Block>;
-/// BlockId type as expected by this runtime.
-pub type BlockId = generic::BlockId<Block>;
 /// The SignedExtension to the basic transaction logic.
 pub type SignedExtra = (
 	frame_system::CheckSpecVersion<Runtime>,
@@ -314,8 +310,6 @@ pub type SignedExtra = (
 );
 /// Unchecked extrinsic type as expected by this runtime.
 pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, Call, Signature, SignedExtra>;
-/// Extrinsic type that has already been checked.
-pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, Call, SignedExtra>;
 /// Executive: handles dispatch to the various modules.
 pub type Executive = frame_executive::Executive<
 	Runtime,