Remove the last bits of unknown_os in the code base (#9718)

* Remove the last bits of unknown_os in the code base

* Fmt

substrate/client/transaction-pool/src/graph/base_pool.rs

@@ -207,8 +207,7 @@ const RECENTLY_PRUNED_TAGS: usize = 2;
 /// as-is for the second time will fail or produce unwanted results.
 /// Most likely it is required to revalidate them and recompute set of
 /// required tags.
-#[derive(Debug)]
-#[cfg_attr(not(target_os = "unknown"), derive(parity_util_mem::MallocSizeOf))]
+#[derive(Debug, parity_util_mem::MallocSizeOf)]
 pub struct BasePool<Hash: hash::Hash + Eq, Ex> {
 	reject_future_transactions: bool,
 	future: FutureTransactions<Hash, Ex>,

substrate/client/transaction-pool/src/graph/future.rs

@@ -28,7 +28,7 @@ use std::time::Instant;
 
 use super::base_pool::Transaction;
 
-#[cfg_attr(not(target_os = "unknown"), derive(parity_util_mem::MallocSizeOf))]
+#[derive(parity_util_mem::MallocSizeOf)]
 /// Transaction with partially satisfied dependencies.
 pub struct WaitingTransaction<Hash, Ex> {
 	/// Transaction details.
@@ -108,8 +108,7 @@ impl<Hash, Ex> WaitingTransaction<Hash, Ex> {
 ///
 /// Contains transactions that are still awaiting for some other transactions that
 /// could provide a tag that they require.
-#[derive(Debug)]
-#[cfg_attr(not(target_os = "unknown"), derive(parity_util_mem::MallocSizeOf))]
+#[derive(Debug, parity_util_mem::MallocSizeOf)]
 pub struct FutureTransactions<Hash: hash::Hash + Eq, Ex> {
 	/// tags that are not yet provided by any transaction and we await for them
 	wanted_tags: HashMap<Tag, HashSet<Hash>>,

substrate/client/transaction-pool/src/graph/pool.rs

@@ -133,7 +133,6 @@ pub struct Pool<B: ChainApi> {
 	validated_pool: Arc<ValidatedPool<B>>,
 }
 
-#[cfg(not(target_os = "unknown"))]
 impl<B: ChainApi> parity_util_mem::MallocSizeOf for Pool<B>
 where
 	ExtrinsicFor<B>: parity_util_mem::MallocSizeOf,

substrate/client/transaction-pool/src/graph/validated_pool.rs

@@ -111,7 +111,6 @@ pub struct ValidatedPool<B: ChainApi> {
 	rotator: PoolRotator<ExtrinsicHash<B>>,
 }
 
-#[cfg(not(target_os = "unknown"))]
 impl<B: ChainApi> parity_util_mem::MallocSizeOf for ValidatedPool<B>
 where
 	ExtrinsicFor<B>: parity_util_mem::MallocSizeOf,