remove unused links

Author: StekPerepolnen

ydb/public/api/client/yc_private/ydb/operation_service.proto

@@ -1,8 +1,6 @@
 syntax = "proto3";
 
 package yandex.cloud.priv.ydb.v1;
-import "ydb/public/api/client/yc_common/api/operation.proto";
-import "ydb/public/api/client/yc_private/access/access.proto";
 import "ydb/public/api/client/yc_private/operation/operation.proto";
 import "ydb/public/api/client/yc_private/common/validation.proto";