Libretro: Add ZL/ZR support (#796)

* iOS: Remove unused hidService

* Libretro: Add ZL/ZR support

* Test build: Create venv

* Install python3-venv package

* Update Test_Build.yml

src/ios_driver.mm

@@ -15,13 +15,11 @@ extern "C" {
 #define IOS_EXPORT extern "C" __attribute__((visibility("default")))
 
 std::unique_ptr<Emulator> emulator = nullptr;
-HIDService* hidService = nullptr;
 
 IOS_EXPORT void iosCreateEmulator() {
 	printf("Creating emulator\n");
 
 	emulator = std::make_unique<Emulator>();
-	hidService = &emulator->getServiceManager().getHID();
 	emulator->initGraphicsContext(nullptr);
 }