prune util/log and user logger (#1237)

* prune util/log and user logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* plaintext logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* add newline

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

agent/input/discord/conn.go

@@ -7,7 +7,7 @@ import (
 
 	"github.com/bwmarrin/discordgo"
 	"github.com/micro/go-micro/v2/agent/input"
-	"github.com/micro/go-micro/v2/util/log"
+	log "github.com/micro/go-micro/v2/logger"
 )
 
 type discordConn struct {
@@ -74,7 +74,7 @@ func (dc *discordConn) Send(e *input.Event) error {
 	fields := strings.Split(e.To, ":")
 	_, err := dc.master.session.ChannelMessageSend(fields[0], string(e.Data))
 	if err != nil {
-		log.Log("[bot][loop][send]", err)
+		log.Error("[bot][loop][send]", err)
 	}
 	return nil
 }