Move QueryTx functions to x/auth/tx (#8734)

* Use x/auth/client for querying Txs

* Fix lint

* Fix small test

* Update todos

* Move QueryTx functions to x/auth/tx

Co-authored-by: Alessio Treglia <alessio@tendermint.com>

x/staking/client/rest/utils.go

@@ -9,7 +9,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/rest"
-	authclient "github.com/cosmos/cosmos-sdk/x/auth/client"
+	authtx "github.com/cosmos/cosmos-sdk/x/auth/tx"
 	"github.com/cosmos/cosmos-sdk/x/staking/types"
 )
 
@@ -33,7 +33,7 @@ func queryTxs(clientCtx client.Context, action string, delegatorAddr string) (*s
 		fmt.Sprintf("%s.%s='%s'", sdk.EventTypeMessage, sdk.AttributeKeySender, delegatorAddr),
 	}
 
-	return authclient.QueryTxsByEvents(clientCtx, events, page, limit, "")
+	return authtx.QueryTxsByEvents(clientCtx, events, page, limit, "")
 }
 
 func queryBonds(clientCtx client.Context, endpoint string) http.HandlerFunc {