Rewrite Inherent data (#1488)

* Implement new inherent data

* Fixes compilation on wasm

* Fixes after rebase

* Switch back to generate inherent stuff by macro

* Update after rebase

* Apply suggestions from code review

Co-Authored-By: bkchr <bkchr@users.noreply.github.com>

* Fix compilation after rebase

* Address grumbles

* Remove `InherentDataProviders` from `Client`

* Update wasm files after rebase

* Address grumbles

* Fixes compilation after latest merge

* Last fix

substrate/srml/session/src/lib.rs

@@ -114,7 +114,6 @@ decl_event!(
 
 decl_storage! {
 	trait Store for Module<T: Trait> as Session {
-
 		/// The current set of validators.
 		pub Validators get(validators) config(): Vec<T::AccountId>;
 		/// Current length of the session.
@@ -246,7 +245,6 @@ mod tests {
 	#[derive(Clone, Eq, PartialEq)]
 	pub struct Test;
 	impl consensus::Trait for Test {
-		const NOTE_OFFLINE_POSITION: u32 = 1;
 		type Log = DigestItem;
 		type SessionKey = UintAuthorityId;
 		type InherentOfflineReport = ();
@@ -265,7 +263,6 @@ mod tests {
 		type Log = DigestItem;
 	}
 	impl timestamp::Trait for Test {
-		const TIMESTAMP_SET_POSITION: u32 = 0;
 		type Moment = u64;
 		type OnTimestampSet = ();
 	}