[1599] Remove some cruft

These methods are not used in the code at all. And they seem like
useless anyway.

src/lib/asiodns/dns_server.h

@@ -88,22 +88,6 @@ public:
     ///             to return.
     virtual void resume(const bool done) { self_->resume(done); }
 
-    /// \brief Indicate whether the server is able to send an answer
-    /// to a query.
-    ///
-    /// This is presently used only for testing purposes.
-    virtual bool hasAnswer() { return (self_->hasAnswer()); }
-
-    /// \brief Returns the current value of the 'coroutine' object
-    ///
-    /// This is a temporary method, intended to be used for debugging
-    /// purposes during development and removed later.  It allows
-    /// callers from outside the coroutine object to retrieve information
-    /// about its current state.
-    ///
-    /// \return The value of the 'coroutine' object
-    virtual int value() { return (self_->value()); }
-
     /// \brief Returns a pointer to a clone of this DNSServer object.
     ///
     /// When a \c DNSServer object is copied or assigned, the result will

src/lib/asiodns/tcp_server.h

@@ -62,14 +62,12 @@ public:
     void asyncLookup();
     void stop();
     void resume(const bool done);
-    bool hasAnswer() { return (done_); }
-    int value() { return (get_value()); }
-
     DNSServer* clone() {
         TCPServer* s = new TCPServer(*this);
         return (s);
     }
 
+
 private:
     enum { MAX_LENGTH = 65535 };
     static const size_t TCP_MESSAGE_LENGTHSIZE = 2;

src/lib/asiodns/udp_server.cc

@@ -343,10 +343,5 @@ UDPServer::resume(const bool done) {
     data_->io_.post(*this);
 }
 
-bool
-UDPServer::hasAnswer() {
-    return (data_->done_);
-}
-
 } // namespace asiodns
 } // namespace isc

src/lib/asiodns/udp_server.h

@@ -83,16 +83,6 @@ public:
     ///        we have an answer
     void resume(const bool done);
 
-    /// \brief Check if we have an answer
-    ///
-    /// \return true if we have an answer
-    bool hasAnswer();
-
-    /// \brief Returns the coroutine state value
-    ///
-    /// \return the coroutine state value
-    int value() { return (get_value()); }
-
     /// \brief Clones the object
     ///
     /// \return a newly allocated copy of this object