Killing off QUICv12, including cleaning out all of the code for handling

net/tools/quic/quic_spdy_client_stream.cc

Index: net/tools/quic/quic_spdy_client_stream.cc
diff --git a/net/tools/quic/quic_spdy_client_stream.cc b/net/tools/quic/quic_spdy_client_stream.cc
index 9e88305f36e99c580d68677c618ab94d228a970d..1dfee9081cdc0bcbddbaa8aa70ca081e52833bb9 100644
--- a/net/tools/quic/quic_spdy_client_stream.cc
+++ b/net/tools/quic/quic_spdy_client_stream.cc
@@ -82,16 +82,8 @@ ssize_t QuicSpdyClientStream::SendRequest(const BalsaHeaders& headers,
 
   bool send_fin_with_headers = fin && body.empty();
   size_t bytes_sent = body.size();
-  if (version() > QUIC_VERSION_12) {
-    header_bytes_written_ = WriteHeaders(header_block, send_fin_with_headers);
-    bytes_sent += header_bytes_written_;
-  } else {
-    string headers_string =
-        session()->compressor()->CompressHeadersWithPriority(
-            priority(), header_block);
-    WriteOrBufferData(headers_string, send_fin_with_headers);
-    bytes_sent += headers_string.length();
-  }
+  header_bytes_written_ = WriteHeaders(header_block, send_fin_with_headers);
+  bytes_sent += header_bytes_written_;
 
   if (!body.empty()) {
     WriteOrBufferData(body, fin);