Emscripten: Deactivated custom cursor support because it created system cursors.

src/video/emscripten/SDL_emscriptenmouse.c

@@ -58,11 +58,13 @@ Emscripten_CreateDefaultCursor()
     return cursor;
 }
 
+/*
 static SDL_Cursor*
 Emscripten_CreateCursor(SDL_Surface* sruface, int hot_x, int hot_y)
 {
     return Emscripten_CreateDefaultCursor();
 }
+*/
 
 static SDL_Cursor*
 Emscripten_CreateSystemCursor(SDL_SystemCursor id)
@@ -200,7 +202,9 @@ Emscripten_InitMouse()
 {
     SDL_Mouse* mouse = SDL_GetMouse();
 
+/*
     mouse->CreateCursor         = Emscripten_CreateCursor;
+*/ 
     mouse->ShowCursor           = Emscripten_ShowCursor;
     mouse->FreeCursor           = Emscripten_FreeCursor;
     mouse->WarpMouse            = Emscripten_WarpMouse;