in debug mode,query memory not enough, may cause be down
fe set useStreamingPreagg true, but be function CreateHashPartitions check is_streaming_preagg_ should false.
then casue core dump.
```
*** Check failure stack trace: ***
@ 0x2aa48ad google::LogMessage::Fail()
@ 0x2aa6734 google::LogMessage::SendToLog()
@ 0x2aa43d4 google::LogMessage::Flush()
@ 0x2aa7169 google::LogMessageFatal::~LogMessageFatal()
@ 0x24703be doris::PartitionedAggregationNode::CreateHashPartitions()
@ 0x2468fd6 doris::PartitionedAggregationNode::open()
@ 0x1e3b153 doris::PlanFragmentExecutor::open_internal()
@ 0x1e3af4b doris::PlanFragmentExecutor::open()
@ 0x1d81b92 doris::FragmentExecState::execute()
@ 0x1d840f7 doris::FragmentMgr::_exec_actual()
```
we should remove DCHECK(!is_streaming_preagg_)