Remove DCHECK(!write_pending_) in BidirectionalStreamSpdyImpl's destructor

net/spdy/bidirectional_stream_spdy_impl.cc

Index: net/spdy/bidirectional_stream_spdy_impl.cc
diff --git a/net/spdy/bidirectional_stream_spdy_impl.cc b/net/spdy/bidirectional_stream_spdy_impl.cc
index 83f9eae3d8daf66dfa90f70550375ec2e57d3e7b..3f755c15a87ba030f614775d6f3326eff48f6359 100644
--- a/net/spdy/bidirectional_stream_spdy_impl.cc
+++ b/net/spdy/bidirectional_stream_spdy_impl.cc
@@ -48,7 +48,6 @@ BidirectionalStreamSpdyImpl::BidirectionalStreamSpdyImpl(
 BidirectionalStreamSpdyImpl::~BidirectionalStreamSpdyImpl() {
   // Sends a RST to the remote if the stream is destroyed before it completes.
   ResetStream();
-  DCHECK(!write_pending_);
 }
 
 void BidirectionalStreamSpdyImpl::Start(