polkadot-parachain-primitives should not depend on frame-support. (#1897)

This PR does not make any functional changes to the code. Rather, it
restructures the dependency graph.

Before this PR, the crate `polkadot-parachain-primitives` depended
directly on the crate `frame-support`. This is wrong in principal
because a parachain does not necessarily have anything to do with frame.

This dependency was only for the `Weight` type which was just a
re-export from `sp-weights` anyway. So this PR changes the dependency to
be directly on the much lighter `sp-weights`.

---------

Co-authored-by: Joshy Orndorff <git-user-email.h0ly5@simplelogin.com>
Co-authored-by: command-bot <>

polkadot/parachain/src/primitives.rs

@@ -20,12 +20,12 @@
 use sp_std::vec::Vec;
 
 use bounded_collections::{BoundedVec, ConstU32};
-use frame_support::weights::Weight;
 use parity_scale_codec::{CompactAs, Decode, Encode, MaxEncodedLen};
 use scale_info::TypeInfo;
 use serde::{Deserialize, Serialize};
 use sp_core::{bytes, RuntimeDebug, TypeId};
 use sp_runtime::traits::Hash as _;
+use sp_weights::Weight;
 
 use polkadot_core_primitives::{Hash, OutboundHrmpMessage};