3DS: Fix crash with libctru 2.0 when exiting

CHANGES

@@ -26,6 +26,7 @@ Emulation fixes:
  - SM83: Emulate HALT bug
 Other fixes:
  - 3DS: Redo video sync to be more precise
+ - 3DS: Fix crash with libctru 2.0 when exiting
  - All: Improve export headers (fixes mgba.io/i/1738)
  - Core: Ensure ELF regions can be written before trying
  - Debugger: Don't skip undefined instructions when debugger attached

src/platform/3ds/main.c

@@ -107,7 +107,6 @@ static C3D_Tex upscaleBufferTex;
 static bool interframeBlending = false;
 static bool sgbCrop = false;
 
-static aptHookCookie cookie;
 static bool core2;
 
 static bool _initGpu(void) {
@@ -190,18 +189,6 @@ static void _cleanup(void) {
 	ptmuExit();
 }
 
-static void _aptHook(APT_HookType hook, void* user) {
-	UNUSED(user);
-	switch (hook) {
-	case APTHOOK_ONEXIT:
-		_cleanup();
-		exit(0);
-		break;
-	default:
-		break;
-	}
-}
-
 static void _map3DSKey(struct mInputMap* map, int ctrKey, enum GBAKey key) {
 	mInputBindKey(map, _3DS_INPUT, __builtin_ctz(ctrKey), key);
 }
@@ -826,8 +813,6 @@ int main() {
 	camera.bufferSize = 0;
 	camera.cam = SELECT_IN1;
 
-	aptHook(&cookie, _aptHook, 0);
-
 	ptmuInit();
 	camInit();