deps: remove polkadot-sdk umbrella crate (#1926)

* deps: get rid of polkadot-sdk umbrella crate

* fix nits

* Update subxt/src/backend/mod.rs

* Update subxt/src/events/events_client.rs

* Update metadata/src/utils/validation.rs

* cargo clippy fix

* fix ui tests

subxt/src/backend/mod.rs

@@ -382,7 +382,6 @@ mod test {
     use crate::backend::StorageResponse;
     use core::convert::Infallible;
     use futures::StreamExt;
-    use polkadot_sdk::sp_core;
     use primitive_types::H256;
     use rpc::RpcClientT;
     use std::collections::{HashMap, VecDeque};

subxt/src/events/events_client.rs

@@ -5,7 +5,6 @@
 use crate::backend::{Backend, BackendExt, BlockRef};
 use crate::{client::OnlineClientT, error::Error, events::Events, Config};
 use derive_where::derive_where;
-use polkadot_sdk::sp_crypto_hashing;
 use std::future::Future;
 
 /// A client for working with events.

subxt/src/lib.rs

@@ -210,7 +210,7 @@ pub mod ext {
 ///     runtime_metadata_path = "../artifacts/polkadot_metadata_full.scale",
 ///     substitute_type(
 ///         path = "sp_runtime::multiaddress::MultiAddress<A, B>",
-///         with = "::subxt::utils::Static<polkadot_sdk::sp_runtime::MultiAddress<A, B>>"
+///         with = "::subxt::utils::Static<sp_runtime::MultiAddress<A, B>>"
 ///     )
 /// )]
 /// mod polkadot {}

subxt/src/storage/storage_type.rs

@@ -12,7 +12,6 @@ use crate::{
 use codec::Decode;
 use derive_where::derive_where;
 use futures::StreamExt;
-use polkadot_sdk::sp_crypto_hashing;
 use std::{future::Future, marker::PhantomData};
 use subxt_core::storage::address::{Address, StorageHashers, StorageKey};
 use subxt_core::utils::Yes;

subxt/src/tx/tx_client.rs

@@ -635,8 +635,8 @@ mod test {
 
     #[test]
     fn transaction_validity_decoding_is_ok() {
-        use polkadot_sdk::sp_runtime::transaction_validity as sp;
-        use polkadot_sdk::sp_runtime::transaction_validity::TransactionValidity as T;
+        use sp_runtime::transaction_validity as sp;
+        use sp_runtime::transaction_validity::TransactionValidity as T;
 
         let pairs = vec![
             (