Remove already obsolete CREDENTIAL frame from SPDY code.

net/spdy/buffered_spdy_framer_unittest.cc

Index: net/spdy/buffered_spdy_framer_unittest.cc
diff --git a/net/spdy/buffered_spdy_framer_unittest.cc b/net/spdy/buffered_spdy_framer_unittest.cc
index 8510db7c58e2da32d9712599d60a9c5a7db5156a..efd977a6b8b38af2c945d90859de20127bdc76ec 100644
--- a/net/spdy/buffered_spdy_framer_unittest.cc
+++ b/net/spdy/buffered_spdy_framer_unittest.cc
@@ -118,11 +118,6 @@ class TestBufferedSpdyVisitor : public BufferedSpdyFramerVisitorInterface {
     goaway_debug_data_.assign(debug_data.data(), debug_data.size());
   }
 
-  bool OnCredentialFrameData(const char*, size_t) {
-    LOG(FATAL) << "Unexpected OnCredentialFrameData call.";
-    return false;
-  }
-
   void OnDataFrameHeader(const SpdyFrame* frame) {
     LOG(FATAL) << "Unexpected OnDataFrameHeader call.";
   }
@@ -147,8 +142,6 @@ class TestBufferedSpdyVisitor : public BufferedSpdyFramerVisitorInterface {
     return true;
   }
 
-  void OnCredential(const SpdyFrame& frame) {}
-
   // Convenience function which runs a framer simulation with particular input.
   void SimulateInFramer(const unsigned char* input, size_t size) {
     buffered_spdy_framer_.set_visitor(this);