Revert of Added send-thresholding and fixed text packet dumping.

talk/media/sctp/sctpdataengine.h

Index: talk/media/sctp/sctpdataengine.h
diff --git a/talk/media/sctp/sctpdataengine.h b/talk/media/sctp/sctpdataengine.h
index a591542bd676622a31e11bdabca3ce87dbcf97ee..86bfa37a48c10dca4c3f5b0cad9a330d27aea10e 100644
--- a/talk/media/sctp/sctpdataengine.h
+++ b/talk/media/sctp/sctpdataengine.h
@@ -64,8 +64,6 @@
 // usrsctp.h)
 const int kSctpDefaultPort = 5000;
 
-class SctpDataMediaChannel;
-
 // A DataEngine that interacts with usrsctp.
 //
 // From channel calls, data flows like this:
@@ -90,7 +88,7 @@
 //  14. SctpDataMediaChannel::SignalDataReceived(data)
 // [from the same thread, methods registered/connected to
 //  SctpDataMediaChannel are called with the recieved data]
-class SctpDataEngine : public DataEngineInterface, public sigslot::has_slots<> {
+class SctpDataEngine : public DataEngineInterface {
  public:
   SctpDataEngine();
   virtual ~SctpDataEngine();
@@ -99,15 +97,9 @@
 
   virtual const std::vector<DataCodec>& data_codecs() { return codecs_; }
 
-  static int SendThresholdCallback(struct socket* sock, uint32_t sb_free);
-
  private:
-  static std::vector<SctpDataMediaChannel*> channels_;
   static int usrsctp_engines_count;
   std::vector<DataCodec> codecs_;
-
-  static SctpDataMediaChannel* GetChannelFromSocket(struct socket* sock);
-  void OnChannelDestroyed(SctpDataMediaChannel *channel);
 };
 
 // TODO(ldixon): Make into a special type of TypedMessageData.
@@ -196,9 +188,6 @@
     debug_name_ = debug_name;
   }
   const std::string& debug_name() const { return debug_name_; }
-  const struct socket* socket() { return sock_; }
-
-  sigslot::signal1<SctpDataMediaChannel*> SignalDestroyed;
 
  private:
   sockaddr_conn GetSctpSockAddr(int port);