chore: remove unused deps, and fix docs issue

Author: dutterbutter

.github/workflows/publish-docs.yml

@@ -18,13 +18,29 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly
+          toolchain: nightly-2022-06-22
 
       - name: Update apt repositories
         run: sudo apt update
 
+      - name: Cache Cargo
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            ~/.cargo/bin
+            target
+            target/debug
+            target/release
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Fetch submodules
+        run: |
+          git submodule update --init --recursive
+
       - name: Build documentation
-        run: cargo doc --no-deps 
+        run: cargo doc --release --no-deps
       - name: Publish documentation
         run: |
           cd target/doc

rust-toolchain.toml

@@ -1,4 +1,4 @@
 [toolchain]
-channel = "nightly-2022-02-01"
+channel = "nightly-2022-06-22"
 components = ["rustfmt", "clippy"]
 targets = ["wasm32-unknown-unknown"]

standalone/runtime/src/lib.rs

@@ -62,9 +62,6 @@ pub use sp_runtime::BuildStorage;
 
 use pallet_election_provider_multi_phase::SolutionAccuracyOf;
 
-#[cfg(feature = "std")]
-use serde::{Deserialize, Serialize};
-
 use codec::{Decode, Encode, MaxEncodedLen};
 use frame_support::{
 	construct_runtime,
@@ -93,7 +90,6 @@ use webb_primitives::{
 	hashing::{ethereum::Keccak256HasherBn254, ArkworksPoseidonHasherBn254},
 	linkable_tree::LinkableTreeInspector,
 	signing::SignatureVerifier,
-	types::ElementTrait,
 	verifying::ArkworksVerifierBn254,
 	Amount, ChainId, LeafIndex,
 };
@@ -538,7 +534,7 @@ impl pallet_election_provider_multi_phase::MinerConfig for WebbMinerConfig {
 	type MaxVotesPerVoter = MaxNominations;
 	type Solution = NposSolution16;
 
-	fn solution_weight(v: u32, t: u32, a: u32, d: u32) -> Weight {
+	fn solution_weight(_v: u32, _t: u32, _a: u32, _d: u32) -> Weight {
 		0
 	}
 }
@@ -633,11 +629,6 @@ parameter_types! {
 	pub const MaxProposals: u32 = 100;
 }
 
-type EnsureRootOrHalfCouncil = EnsureOneOf<
-	EnsureRoot<AccountId>,
-	pallet_collective::EnsureProportionMoreThan<AccountId, CouncilCollective, 1, 2>,
->;
-
 impl pallet_democracy::Config for Runtime {
 	type BlacklistOrigin = EnsureRoot<AccountId>;
 	// To cancel a proposal before it has been passed, the technical committee must