Refine QuicSpdyStream::UsesPendingStreams() behavior.

This is so that VersionHasStreamType(), which is an HTTP/3 concept, can be
removed from QuicStream, which lives in the transport layer.

gfe-relnote: n/a, no functional change.
PiperOrigin-RevId: 254379801
Change-Id: I6634dc77e85673166628b5912788cc8a41db2b57
diff --git a/quic/core/quic_session.cc b/quic/core/quic_session.cc
index bb2a7b9..19b219d 100644
--- a/quic/core/quic_session.cc
+++ b/quic/core/quic_session.cc
@@ -200,8 +200,7 @@
     return;
   }
 
-  if (VersionHasStreamType(connection()->transport_version()) &&
-      UsesPendingStreams() &&
+  if (UsesPendingStreams() &&
       QuicUtils::GetStreamType(stream_id, perspective(),
                                IsIncomingStream(stream_id)) ==
           READ_UNIDIRECTIONAL &&
@@ -370,8 +369,7 @@
     visitor_->OnRstStreamReceived(frame);
   }
 
-  if (VersionHasStreamType(connection()->transport_version()) &&
-      UsesPendingStreams() &&
+  if (UsesPendingStreams() &&
       QuicUtils::GetStreamType(stream_id, perspective(),
                                IsIncomingStream(stream_id)) ==
           READ_UNIDIRECTIONAL &&