diff --git a/source/build/src/sdlayer.cpp b/source/build/src/sdlayer.cpp
index caccbab70..ead13e21e 100644
--- a/source/build/src/sdlayer.cpp
+++ b/source/build/src/sdlayer.cpp
@@ -92,9 +92,6 @@ char nogl=0;
 #endif
 static int32_t vsync_renderlayer;
 int32_t maxrefreshfreq=0;
-#if SDL_MAJOR_VERSION==2
-static uint32_t currentVBlankInterval=0;
-#endif
 
 // last gamma, contrast, brightness
 static float lastvidgcb[3];
@@ -1654,8 +1651,6 @@ void setrefreshrate(void)
 
     if (!newmode.refresh_rate)
         newmode.refresh_rate = 60;
-
-    currentVBlankInterval = 1000/newmode.refresh_rate;
 }
 
 int32_t videoSetMode(int32_t x, int32_t y, int32_t c, int32_t fs)
@@ -1931,13 +1926,7 @@ void videoShowFrame(int32_t w)
 		OSD_Printf("glfinish time: %2.3f\n", clock.TimeMS());
 #endif
         SDL_GL_SwapWindow(sdl_window);
-		/*
-        if (vsync)
-        {
-            // busy loop until we're ready to update again
-            while (SDL_GetTicks()-lastSwapTime < currentVBlankInterval) {}
-        }
-		*/
+
         lastSwapTime = SDL_GetTicks();
         return;
     }