Remove Android nanort overlay

src/legacy_gl_runtime_dispatch.h

@@ -29,6 +29,12 @@ inline std::uint32_t query_opengl_error() noexcept
     return static_cast<std::uint32_t>(glGetError());
 }
 
+#if defined(__ANDROID__)
+inline bool has_opengl_debug_message_callback() noexcept
+{
+    return false;
+}
+#else
 inline bool has_opengl_debug_message_callback() noexcept
 {
     return glDebugMessageCallback != nullptr;
@@ -38,6 +44,7 @@ inline void install_opengl_debug_message_callback(GLDEBUGPROC callback, const vo
 {
     glDebugMessageCallback(callback, user_param);
 }
+#endif
 
 inline pp::renderer::gl::OpenGlRuntimeInfoDispatch runtime_info_dispatch() noexcept
 {