[#83] services: Remove setting of meta header from executing services

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/services/accounting/executor.go

@@ -4,7 +4,6 @@ import (
 	"context"
 
 	"github.com/nspcc-dev/neofs-api-go/v2/accounting"
-	"github.com/nspcc-dev/neofs-api-go/v2/session"
 	"github.com/pkg/errors"
 )
 
@@ -14,17 +13,12 @@ type ServiceExecutor interface {
 
 type executorSvc struct {
 	exec ServiceExecutor
-
-	metaHeader *session.ResponseMetaHeader
 }
 
 // NewExecutionService wraps ServiceExecutor and returns Accounting Service interface.
-//
-// Passed meta header is attached to all responses.
-func NewExecutionService(exec ServiceExecutor, metaHdr *session.ResponseMetaHeader) accounting.Service {
+func NewExecutionService(exec ServiceExecutor) accounting.Service {
 	return &executorSvc{
-		exec:       exec,
-		metaHeader: metaHdr,
+		exec: exec,
 	}
 }
 
@@ -36,7 +30,6 @@ func (s *executorSvc) Balance(ctx context.Context, req *accounting.BalanceReques
 
 	resp := new(accounting.BalanceResponse)
 	resp.SetBody(respBody)
-	resp.SetMetaHeader(s.metaHeader)
 
 	return resp, nil
 }