Move non runtime related stuff into node/primitives (#2743)

* Remove stuff out of the runtime that does not belong there.

There might be more, but it is a start.

* White space fixes.

* Fix tests.

* Leave whitespace in ui tests alone.

* Add back zstd for no reason.

* Fix browser wasm (hopefully)

polkadot/parachain/src/primitives.rs

@@ -193,7 +193,7 @@ pub trait AccountIdConversion<AccountId>: Sized {
 	/// Convert into an account ID. This is infallible.
 	fn into_account(&self) -> AccountId;
 
- 	/// Try to convert an account ID into this type. Might not succeed.
+	/// Try to convert an account ID into this type. Might not succeed.
 	fn try_from_account(a: &AccountId) -> Option<Self>;
 }
 
@@ -225,7 +225,7 @@ impl<T: Encode + Decode + Default> AccountIdConversion<T> for Id {
 		).unwrap_or_default()
 	}
 
- 	fn try_from_account(x: &T) -> Option<Self> {
+	fn try_from_account(x: &T) -> Option<Self> {
 		x.using_encoded(|d| {
 			if &d[0..4] != b"para" { return None }
 			let mut cursor = &d[4..];

polkadot/parachain/test-parachains/adder/collator/src/lib.rs

@@ -18,7 +18,8 @@
 
 use futures_timer::Delay;
 use polkadot_node_primitives::{Collation, CollatorFn, CollationResult, Statement, SignedFullStatement};
-use polkadot_primitives::v1::{CollatorId, CollatorPair, PoV};
+use polkadot_primitives::v1::{CollatorId, CollatorPair};
+use polkadot_node_primitives::PoV;
 use parity_scale_codec::{Encode, Decode};
 use sp_core::{Pair, traits::SpawnNamed};
 use std::{