fix clang-check warnings

src/frontend/hud.cpp

@@ -289,8 +289,6 @@ void Hud::updateWorldGenDebugVisualization() {
 
     for (int z = 0; z < height; z++) {
         for (int x = 0; x < width; x++) {
-            int cx = x + ox;
-            int cz = z + oz;
             int flippedZ = height - z - 1;
 
             int ax = x - (width - areaWidth) / 2;

src/frontend/screens/LevelScreen.cpp

@@ -148,7 +148,6 @@ void LevelScreen::saveWorldPreview() {
 }
 
 void LevelScreen::updateHotkeys() {
-    auto player = playerController->getPlayer();
     auto& settings = engine.getSettings();
     if (Events::jpressed(keycode::O)) {
         settings.graphics.frustumCulling.toggle();