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/node/core/approval-voting/src/approval_checking.rs

@@ -52,7 +52,7 @@ pub enum RequiredTranches {
 		needed: DelayTranche,
 		/// The amount of missing votes that should be tolerated.
 		tolerated_missing: usize,
- 		/// When the next no-show would be, if any. This is used to schedule the next wakeup in the
+		/// When the next no-show would be, if any. This is used to schedule the next wakeup in the
 		/// event that there are some assignments that don't have corresponding approval votes. If this
 		/// is `None`, all assignments have approvals.
 		next_no_show: Option<Tick>,

polkadot/node/core/approval-voting/src/lib.rs

@@ -37,10 +37,10 @@ use polkadot_node_subsystem_util::{
 use polkadot_primitives::v1::{
 	ValidatorIndex, Hash, SessionIndex, SessionInfo, CandidateHash,
 	CandidateReceipt, BlockNumber, PersistedValidationData,
-	ValidationCode, CandidateDescriptor, PoV, ValidatorPair, ValidatorSignature, ValidatorId,
+	ValidationCode, CandidateDescriptor, ValidatorPair, ValidatorSignature, ValidatorId,
 	CandidateIndex, GroupIndex,
 };
-use polkadot_node_primitives::ValidationResult;
+use polkadot_node_primitives::{ValidationResult, PoV};
 use polkadot_node_primitives::approval::{
 	IndirectAssignmentCert, IndirectSignedApprovalVote, ApprovalVote, DelayTranche,
 };