Remove unused Messages

include/rive/artboard.hpp

diff --git a/include/rive/artboard.hpp b/include/rive/artboard.hpp
index 17daac9..68effa7 100644
--- a/include/rive/artboard.hpp
+++ b/include/rive/artboard.hpp
@@ -6,7 +6,6 @@
 #include "rive/core_context.hpp"
 #include "rive/generated/artboard_base.hpp"
 #include "rive/hit_info.hpp"
-#include "rive/message.hpp"
 #include "rive/math/aabb.hpp"
 #include "rive/renderer.hpp"
 #include "rive/shapes/shape_paint_container.hpp"
@@ -48,8 +47,6 @@
         bool m_IsInstance = false;
         bool m_FrameOrigin = true;
 
-        std::queue<Message> m_MessageQueue;
-
         void sortDependencies();
         void sortDrawOrder();
 
@@ -64,8 +61,6 @@
         void addStateMachine(StateMachine* object);
         void addNestedArtboard(NestedArtboard* object);
 
-        void testing_only_enque_message(const Message&);
-
     public:
         Artboard() {}
         ~Artboard();
@@ -93,19 +88,6 @@
 
         bool advance(double elapsedSeconds);
 
-        // Returns true iff calling popMessage() will return true.
-        bool hasMessages() const;
-
-        // If there are any queued messages...
-        //   copies the first message into msg parameter
-        //   removes that message from the queue
-        //   returns true
-        // else
-        //   ignores msg parameter
-        //   returns false
-        //
-        bool nextMessage(Message* msg);
-
         enum class DrawOption {
             kNormal,
             kHideBG,

include/rive/message.hpp

diff --git a/include/rive/message.hpp b/include/rive/message.hpp
deleted file mode 100644
index 5fda832..0000000
--- a/include/rive/message.hpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef _RIVE_MESSAGE_HPP_
-#define _RIVE_MESSAGE_HPP_
-
-#include "rive/math/vec2d.hpp"
-#include <string>
-
-namespace rive {
-
-struct Message {
-    // TODO -- how to represent this?
-    // Perhaps some sort of JSON-like object: key-value pairs?
-    // For now, store a string so we can test it...
-    
-    std::string m_Str;
-};
-                              
-} // namespace rive
-
-#endif

skia/viewer/src/main.cpp

diff --git a/skia/viewer/src/main.cpp b/skia/viewer/src/main.cpp
index 0d5640b..e41850e 100644
--- a/skia/viewer/src/main.cpp
+++ b/skia/viewer/src/main.cpp
@@ -156,20 +156,6 @@
     initAnimation(0);
 }
 
-static void test_messages(rive::Artboard* artboard) {
-    rive::Message msg;
-    int i = 0;
-#ifdef DEBUG
-    bool hasAny = artboard->hasMessages();
-#endif
-
-    while (artboard->nextMessage(&msg)) {
-        printf("-- message[%d]: '%s'\n", i, msg.m_Str.c_str());
-        i += 1;
-    }
-    assert((hasAny && i > 0) || (!hasAny && i == 0));
-}
-
 int main() {
     if (!glfwInit()) {
         fprintf(stderr, "Failed to initialize glfw.\n");
@@ -372,7 +358,6 @@
                 ImGui::Columns(1);
             }
             ImGui::End();
-            test_messages(artboardInstance.get());
 
         } else {
             ImGui::Text("Drop a .riv file to preview.");

src/artboard.cpp

diff --git a/src/artboard.cpp b/src/artboard.cpp
index 85302b9..b11e996 100644
--- a/src/artboard.cpp
+++ b/src/artboard.cpp
@@ -576,20 +576,6 @@
     return result;
 }
 
-void Artboard::testing_only_enque_message(const Message& msg) { m_MessageQueue.push(msg); }
-
-bool Artboard::hasMessages() const { return !m_MessageQueue.empty(); }
-
-bool Artboard::nextMessage(Message* msg) {
-    if (m_MessageQueue.empty()) {
-        return false;
-    } else {
-        *msg = m_MessageQueue.front();
-        m_MessageQueue.pop();
-        return true;
-    }
-}
-
 ////////// ArtboardInstance
 
 #include "rive/animation/linear_animation_instance.hpp"