Remove implot from toolbox/window.cc

PiperOrigin-RevId: 830842619
Change-Id: I39d13508423ad0ba1e12349ceaccab2425d28243

src/experimental/studio/app.cc

@@ -119,6 +119,7 @@ App::App(int width, int height, std::string ini_path,
     : ini_path_(std::move(ini_path)), load_asset_fn_(load_asset_fn) {
   window_ = std::make_unique<toolbox::Window>("MuJoCo Studio", width, height,
                                               kWindowConfig, load_asset_fn);
+  ImPlot::CreateContext();
 
   auto make_context_fn = [&](const mjModel* m, mjrContext* con) {
 #if defined(USE_CLASSIC_OPENGL)

src/experimental/toolbox/window.cc

@@ -26,7 +26,6 @@
 #include <SDL_video.h>
 #include <backends/imgui_impl_sdl2.h>
 #include <imgui.h>
-#include <implot.h>
 #include "experimental/toolbox/helpers.h"
 #include <mujoco/mujoco.h>
 
@@ -39,7 +38,6 @@ namespace mujoco::toolbox {
 
 static void InitImGui(SDL_Window* window, const LoadAssetFn& load_asset_fn) {
   ImGui::CreateContext();
-  ImPlot::CreateContext();
 
   ImGuiIO& io = ImGui::GetIO();
   io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;