Various nits and alignments for testnet runtimes (#3024)

There were several improvements and PRs that didn't apply to all
runtimes, so this PR attempts to align those small differences. In
addition, the PR eliminates unused dependencies across multiple modules.

Relates to PR for `polkadot-fellows`:
https://github.com/polkadot-fellows/runtimes/pull/154

cumulus/parachains/runtimes/people/people-westend/Cargo.toml

@@ -16,7 +16,6 @@ hex-literal = { version = "0.4.1" }
 log = { version = "0.4.20", default-features = false }
 scale-info = { version = "2.9.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.195", optional = true, features = ["derive"] }
-smallvec = "1.11.0"
 
 # Substrate
 frame-benchmarking = { path = "../../../../../substrate/frame/benchmarking", default-features = false, optional = true }
@@ -54,7 +53,6 @@ sp-version = { path = "../../../../../substrate/primitives/version", default-fea
 # Polkadot
 pallet-xcm = { path = "../../../../../polkadot/xcm/pallet-xcm", default-features = false }
 pallet-xcm-benchmarks = { path = "../../../../../polkadot/xcm/pallet-xcm-benchmarks", default-features = false, optional = true }
-polkadot-core-primitives = { path = "../../../../../polkadot/core-primitives", default-features = false }
 polkadot-parachain-primitives = { path = "../../../../../polkadot/parachain", default-features = false }
 polkadot-runtime-common = { path = "../../../../../polkadot/runtime/common", default-features = false }
 westend-runtime-constants = { path = "../../../../../polkadot/runtime/westend/constants", default-features = false }
@@ -64,7 +62,6 @@ xcm-executor = { package = "staging-xcm-executor", path = "../../../../../polkad
 
 # Cumulus
 cumulus-pallet-aura-ext = { path = "../../../../pallets/aura-ext", default-features = false }
-cumulus-pallet-dmp-queue = { path = "../../../../pallets/dmp-queue", default-features = false }
 cumulus-pallet-parachain-system = { path = "../../../../pallets/parachain-system", default-features = false, features = ["parameterized-consensus-hook"] }
 cumulus-pallet-session-benchmarking = { path = "../../../../pallets/session-benchmarking", default-features = false }
 cumulus-pallet-xcm = { path = "../../../../pallets/xcm", default-features = false }
@@ -80,7 +77,6 @@ default = ["std"]
 std = [
 	"codec/std",
 	"cumulus-pallet-aura-ext/std",
-	"cumulus-pallet-dmp-queue/std",
 	"cumulus-pallet-parachain-system/std",
 	"cumulus-pallet-session-benchmarking/std",
 	"cumulus-pallet-xcm/std",
@@ -112,7 +108,6 @@ std = [
 	"pallet-xcm/std",
 	"parachain-info/std",
 	"parachains-common/std",
-	"polkadot-core-primitives/std",
 	"polkadot-parachain-primitives/std",
 	"polkadot-runtime-common/std",
 	"scale-info/std",
@@ -138,7 +133,6 @@ std = [
 ]
 
 runtime-benchmarks = [
-	"cumulus-pallet-dmp-queue/runtime-benchmarks",
 	"cumulus-pallet-parachain-system/runtime-benchmarks",
 	"cumulus-pallet-session-benchmarking/runtime-benchmarks",
 	"cumulus-pallet-xcmp-queue/runtime-benchmarks",
@@ -167,7 +161,6 @@ runtime-benchmarks = [
 
 try-runtime = [
 	"cumulus-pallet-aura-ext/try-runtime",
-	"cumulus-pallet-dmp-queue/try-runtime",
 	"cumulus-pallet-parachain-system/try-runtime",
 	"cumulus-pallet-xcm/try-runtime",
 	"cumulus-pallet-xcmp-queue/try-runtime",

cumulus/parachains/runtimes/people/people-westend/src/lib.rs

@@ -434,13 +434,9 @@ construct_runtime!(
 	}
 );
 
-#[cfg(feature = "runtime-benchmarks")]
-#[macro_use]
-extern crate frame_benchmarking;
-
 #[cfg(feature = "runtime-benchmarks")]
 mod benches {
-	define_benchmarks!(
+	frame_benchmarking::define_benchmarks!(
 		// Substrate
 		[frame_system, SystemBench::<Runtime>]
 		[pallet_balances, Balances]