iOS should use the same size window for the controller tests as other platforms

Otherwise the position of the button and axis elements won't be correct

test/controllermap.c

@@ -24,13 +24,8 @@
 /* Define this for verbose output while mapping controllers */
 #define DEBUG_CONTROLLERMAP
 
-#ifdef __IPHONEOS__
-#define SCREEN_WIDTH    320
-#define SCREEN_HEIGHT   480
-#else
 #define SCREEN_WIDTH    512
 #define SCREEN_HEIGHT   320
-#endif
 
 #define MARKER_BUTTON 1
 #define MARKER_AXIS 2

test/testgamecontroller.c

@@ -24,13 +24,8 @@
 
 #ifndef SDL_JOYSTICK_DISABLED
 
-#ifdef __IPHONEOS__
-#define SCREEN_WIDTH    480
-#define SCREEN_HEIGHT    320
-#else
 #define SCREEN_WIDTH    512
 #define SCREEN_HEIGHT   320
-#endif
 
 /* This is indexed by SDL_GameControllerButton. */
 static const struct { int x; int y; } button_positions[] = {