Move libs/async to internal/libs/async. (#7449)

CHANGELOG_PENDING.md

@@ -27,6 +27,7 @@ Special thanks to external contributors on this release:
 
 - Go API
 
+  - [libs/async] \#7449 Move library to internal. (@creachadair)
   - [pubsub] \#7231 Remove unbuffered subscriptions and rework the Subscription interface. (@creachadair)
   - [eventbus] \#7231 Move the EventBus type to the internal/eventbus package. (@creachadair)
   - [blocksync] \#7046 Remove v2 implementation of the blocksync service and recactor, which was disabled in the previous release. (@tychoish)

internal/p2p/conn/secret_connection.go

@@ -25,8 +25,8 @@ import (
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/ed25519"
 	"github.com/tendermint/tendermint/crypto/encoding"
+	"github.com/tendermint/tendermint/internal/libs/async"
 	"github.com/tendermint/tendermint/internal/libs/protoio"
-	"github.com/tendermint/tendermint/libs/async"
 	tmp2p "github.com/tendermint/tendermint/proto/tendermint/p2p"
 )
 

internal/p2p/conn/secret_connection_test.go

@@ -21,7 +21,7 @@ import (
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/ed25519"
 	"github.com/tendermint/tendermint/crypto/sr25519"
-	"github.com/tendermint/tendermint/libs/async"
+	"github.com/tendermint/tendermint/internal/libs/async"
 	tmrand "github.com/tendermint/tendermint/libs/rand"
 )
 

privval/secret_connection.go

@@ -25,8 +25,8 @@ import (
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/ed25519"
 	"github.com/tendermint/tendermint/crypto/encoding"
+	"github.com/tendermint/tendermint/internal/libs/async"
 	"github.com/tendermint/tendermint/internal/libs/protoio"
-	"github.com/tendermint/tendermint/libs/async"
 	tmprivval "github.com/tendermint/tendermint/proto/tendermint/privval"
 )
 

test/fuzz/p2p/secretconnection/read_write.go

@@ -7,8 +7,8 @@ import (
 	"log"
 
 	"github.com/tendermint/tendermint/crypto/ed25519"
+	"github.com/tendermint/tendermint/internal/libs/async"
 	sc "github.com/tendermint/tendermint/internal/p2p/conn"
-	"github.com/tendermint/tendermint/libs/async"
 )
 
 func Fuzz(data []byte) int {