v16: Remove the runtime type entirely

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

frame-metadata/src/v16.rs

@@ -23,7 +23,7 @@ use codec::{Compact, Encode};
 use scale_info::{
  form::{Form, MetaForm, PortableForm},
  prelude::{collections::BTreeMap, vec::Vec},
- IntoPortable, MetaType, PortableRegistry, Registry,
+ IntoPortable, PortableRegistry, Registry,
 };
 
 pub use super::v14::{StorageEntryModifier, StorageEntryType, StorageHasher};
@@ -48,8 +48,6 @@ pub struct RuntimeMetadataV16 {
  pub pallets: Vec<PalletMetadata<PortableForm>>,
  /// Metadata of the extrinsic.
  pub extrinsic: ExtrinsicMetadata<PortableForm>,
- /// The type of the `Runtime`.
- pub ty: <PortableForm as Form>::Type,
  /// Metadata of the Runtime API.
  pub apis: Vec<RuntimeApiMetadata<PortableForm>>,
  /// The outer enums types as found in the runtime.
@@ -63,15 +61,13 @@ impl RuntimeMetadataV16 {
  pub fn new(
  pallets: Vec<PalletMetadata>,
  extrinsic: ExtrinsicMetadata,
- runtime_type: MetaType,
  apis: Vec<RuntimeApiMetadata>,
  outer_enums: OuterEnums,
  custom: CustomMetadata,
  ) -> Self {
  let mut registry = Registry::new();
  let pallets = registry.map_into_portable(pallets);
  let extrinsic = extrinsic.into_portable(&mut registry);
- let ty = registry.register_type(&runtime_type);
  let apis = registry.map_into_portable(apis);
  let outer_enums = outer_enums.into_portable(&mut registry);
  let custom = custom.into_portable(&mut registry);
@@ -80,7 +76,6 @@ impl RuntimeMetadataV16 {
  types: registry.into(),
  pallets,
  extrinsic,
- ty,
  apis,
  outer_enums,
  custom,