Removed the love.joystickball event callback function

src/modules/event/sdl/Event.cpp

@@ -89,7 +89,7 @@ Message *Event::convert(SDL_Event &e)
 	love::keyboard::Keyboard::Key key;
 	love::mouse::Mouse::Button button;
 	love::joystick::Joystick::Hat hat;
-	Variant *arg1, *arg2, *arg3, *arg4;
+	Variant *arg1, *arg2, *arg3;
 	const char *txt;
 	switch (e.type)
 	{
@@ -153,17 +153,6 @@ Message *Event::convert(SDL_Event &e)
 			arg3->release();
 		}
 		break;
-	case SDL_JOYBALLMOTION:
-		arg1 = new Variant((double)(e.jball.which+1));
-		arg2 = new Variant((double)(e.jball.ball+1));
-		arg3 = new Variant((double)e.jball.xrel);
-		arg4 = new Variant((double)e.jball.yrel);
-		msg = new Message("joystickball", arg1, arg2, arg3, arg4);
-		arg1->release();
-		arg2->release();
-		arg3->release();
-		arg4->release();
-		break;
 	case SDL_JOYHATMOTION:
 		if (hats.find(e.jhat.value, hat) && love::joystick::Joystick::getConstant(hat, txt))
 		{

src/scripts/boot.lua

@@ -176,9 +176,6 @@ function love.createhandlers()
 		joystickaxis = function (j,a,v)
 			if love.joystickaxis then return love.joystickaxis(j,a,v) end
 		end,
-		joystickball = function (j,b,dx,dy)
-			if love.joystickball then return love.joystickball(j,b,dx,dy) end
-		end,
 		joystickhat = function(j,h,v)
 			if love.joystickhat then return love.joystickhat(j,h,v) end
 		end,

src/scripts/boot.lua.h

@@ -308,14 +308,6 @@ const unsigned char boot_lua[] =
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