Remove internal notification caller tokens

backend/notifications/app/run.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"crypto/tls"
 	"net"
-	"os"
 	"sync"
 	"time"
 
@@ -63,11 +62,7 @@ func Run(ctx context.Context, c Config, logger mlogger.Logger) error {
 		return err
 	}
 	defer broker.Close()
-	tokens := map[string]string{}
-	for caller, env := range c.Callers {
-		tokens[caller] = os.Getenv(env)
-	}
-	server := grpc.NewServer(append(options, grpc.UnaryInterceptor(transport.Authenticate(tokens)), grpc.MaxRecvMsgSize(128<<10), grpc.MaxConcurrentStreams(64))...)
+	server := grpc.NewServer(append(options, grpc.MaxRecvMsgSize(128<<10), grpc.MaxConcurrentStreams(64))...)
 	pb.RegisterNotificationsServiceServer(server, transport.New(svc))
 	listener, err := net.Listen("tcp", c.Listen)
 	if err != nil {