Cleaned up SDL_migration.cocci, removing old SDL3 names

build-scripts/SDL_migration.cocci

@@ -2217,46 +2217,6 @@ expression e;
 + SDL_EVENT_JOYSTICK_BATTERY_UPDATED
 @@
 @@
-- SDL_GAMEPADAXISMOTION
-+ SDL_EVENT_GAMEPAD_AXIS_MOTION
-@@
-@@
-- SDL_GAMEPADBUTTONDOWN
-+ SDL_EVENT_GAMEPAD_BUTTON_DOWN
-@@
-@@
-- SDL_GAMEPADBUTTONUP
-+ SDL_EVENT_GAMEPAD_BUTTON_UP
-@@
-@@
-- SDL_GAMEPADADDED
-+ SDL_EVENT_GAMEPAD_ADDED
-@@
-@@
-- SDL_GAMEPADREMOVED
-+ SDL_EVENT_GAMEPAD_REMOVED
-@@
-@@
-- SDL_GAMEPADREMAPPED
-+ SDL_EVENT_GAMEPAD_REMAPPED
-@@
-@@
-- SDL_GAMEPADTOUCHPADDOWN
-+ SDL_EVENT_GAMEPAD_TOUCHPAD_DOWN
-@@
-@@
-- SDL_GAMEPADTOUCHPADMOTION
-+ SDL_EVENT_GAMEPAD_TOUCHPAD_MOTION
-@@
-@@
-- SDL_GAMEPADTOUCHPADUP
-+ SDL_EVENT_GAMEPAD_TOUCHPAD_UP
-@@
-@@
-- SDL_GAMEPADSENSORUPDATE
-+ SDL_EVENT_GAMEPAD_SENSOR_UPDATE
-@@
-@@
 - SDL_FINGERDOWN
 + SDL_EVENT_FINGER_DOWN
 @@