Remove long-rotted vestiges of SDL video output.

Use SDL for input devices only on Windows and Linux. 
(Still globally enabled for the legacy Wiimote plugin.)


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5886 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/DolphinWX/Src/MainNoGUI.cpp

@@ -356,10 +356,6 @@ int main(int argc, char *argv[])
 
 int appleMain(int argc, char *argv[])
 #else
-// Include SDL header so it can hijack main().
-#if defined(USE_SDL) && USE_SDL
-#include <SDL.h>
-#endif
 int main(int argc, char* argv[])
 #endif
 {