Update bridges subtree (#2903)

* Squashed 'bridges/' changes from 0417308a48..3c4ada921b

3c4ada921b Update dependecies (#2277) (#2281)
3e195c9e76 GRANDPA: optimize votes_ancestries when needed (#2262) (#2264)
7065bbabc6 Implement RuntimeDebug for GrandpaJustification (#2254)
8c9e59bcbc Define generate_grandpa_key_ownership_proof() (#2247) (#2248)
0b46956df7 Deduplicate Grandpa consensus log reading logic (#2245) (#2246)
96c9701710 Fix deps from Cumulus (#2244)

git-subtree-dir: bridges
git-subtree-split: 3c4ada921bbdbdba945c3aa85d76ce316f7baab3

* removed extra files

* post-merge fixes

* also post-merge fixes

cumulus/bridges/primitives/runtime/src/lib.rs

@@ -25,6 +25,7 @@ use frame_support::{
 };
 use frame_system::RawOrigin;
 use scale_info::TypeInfo;
+use serde::{Deserialize, Serialize};
 use sp_core::storage::StorageKey;
 use sp_runtime::traits::{BadOrigin, Header as HeaderT, UniqueSaturatedInto};
 use sp_std::{convert::TryFrom, fmt::Debug, ops::RangeInclusive, vec, vec::Vec};
@@ -383,8 +384,8 @@ pub trait OperatingMode: Send + Copy + Debug + FullCodec {
 	RuntimeDebug,
 	TypeInfo,
 	MaxEncodedLen,
-	serde::Serialize,
-	serde::Deserialize,
+	Serialize,
+	Deserialize,
 )]
 pub enum BasicOperatingMode {
 	/// Normal mode, when all operations are allowed.