[#516] Convert expiration date to epoch

Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>

api/layer/lifecycle_test.go

@@ -1,9 +1,7 @@
 package layer
 
 import (
-	"bytes"
 	"crypto/md5"
-	"encoding/base64"
 	"encoding/xml"
 	"testing"
 
@@ -42,10 +40,8 @@ func TestBucketLifecycle(t *testing.T) {
 	require.NoError(t, err)
 
 	err = tc.layer.PutBucketLifecycleConfiguration(tc.ctx, &PutBucketLifecycleParams{
-		BktInfo:         tc.bktInfo,
-		LifecycleCfg:    lifecycle,
-		LifecycleReader: bytes.NewReader(lifecycleBytes),
-		MD5Hash:         base64.StdEncoding.EncodeToString(hash.Sum(nil)),
+		BktInfo:      tc.bktInfo,
+		LifecycleCfg: lifecycle,
 	})
 	require.NoError(t, err)