Remove obsolete ViewerSkiaRenderer

Diffs=
a9bfb7f6d Remove obsolete ViewerSkiaRenderer

.rive_head

diff --git a/.rive_head b/.rive_head
index 7931a13..184f1bc 100644
--- a/.rive_head
+++ b/.rive_head
@@ -1 +1 @@
-7093089a798479fc840dba7aadc88ce27b10ca44
+a9bfb7f6d431c3a4b46ca7cb69b11a93830a8d85

viewer/include/viewer/skia/viewer_skia_renderer.hpp

diff --git a/viewer/include/viewer/skia/viewer_skia_renderer.hpp b/viewer/include/viewer/skia/viewer_skia_renderer.hpp
deleted file mode 100644
index 8d8a869..0000000
--- a/viewer/include/viewer/skia/viewer_skia_renderer.hpp
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef _RIVE_VIEWER_SKIA_RENDERER_HPP_
-#define _RIVE_VIEWER_SKIA_RENDERER_HPP_
-
-#ifdef RIVE_RENDERER_SKIA
-#include "skia_renderer.hpp"
-
-class ViewerSkiaRenderer : public rive::SkiaRenderer {
-public:
-    ViewerSkiaRenderer(SkCanvas* canvas) : rive::SkiaRenderer(canvas) {}
-    SkCanvas* canvas() { return m_Canvas; }
-};
-#endif
-#endif
\ No newline at end of file

viewer/include/viewer/viewer_content.hpp

diff --git a/viewer/include/viewer/viewer_content.hpp b/viewer/include/viewer/viewer_content.hpp
index e76f428..e78b39f 100644
--- a/viewer/include/viewer/viewer_content.hpp
+++ b/viewer/include/viewer/viewer_content.hpp
@@ -8,11 +8,6 @@
 #include "rive/span.hpp"
 #include "imgui.h"
 
-#ifdef RIVE_RENDERER_SKIA
-#include "SkCanvas.h"
-#include "viewer/skia/viewer_skia_renderer.hpp"
-#endif
-
 namespace rive {
     class Renderer;
     class Factory;

viewer/src/viewer.cpp

diff --git a/viewer/src/viewer.cpp b/viewer/src/viewer.cpp
index fd65d70..a80db62 100644
--- a/viewer/src/viewer.cpp
+++ b/viewer/src/viewer.cpp
@@ -15,7 +15,7 @@
 #include <memory>
 
 #ifdef RIVE_RENDERER_SKIA
-#include "viewer/skia/viewer_skia_renderer.hpp"
+#include "skia_renderer.hpp"
 sk_sp<GrDirectContext> g_SkiaContext;
 sk_sp<SkSurface> g_SkiaSurface;
 #endif
@@ -80,7 +80,7 @@
     paint.setColor(backgroundColor);
     canvas->drawPaint(paint);
 
-    ViewerSkiaRenderer skiaRenderer(canvas);
+    rive::SkiaRenderer skiaRenderer(canvas);
     if (g_Content) {
         g_Content->handleDraw(&skiaRenderer, sapp_frame_duration());
     }