Author :
Ryan C. Gordon
Date :
2014-06-14 23:31:23
Hash :446d19c4 Message :Removed SDL_SYS_JoystickNeedsPolling().
It was simpler to just have the polling (actually: hotplug detection)
functions return immediately if it's not an appropriate time to poll.
Note that previously, if any joystick/controller was opened, we would poll
every time anyhow, skipping this function.