feat: remove old architecture support from iOS

Author: MounirDhahri

ios/LaunchArguments.h

@@ -1,12 +1,8 @@
 #import <React/RCTBridgeModule.h>
 
-#ifdef RCT_NEW_ARCH_ENABLED
 #import <React/RCTTurboModule.h>
 #import "RCTNativeLaunchArgumentsSpec.h"
 
 @interface LaunchArguments : NSObject <NativeLaunchArgumentsSpec>
-#else
-@interface LaunchArguments : NSObject <RCTBridgeModule>
-#endif
 
 @end

ios/LaunchArguments.m

@@ -4,13 +4,11 @@ @implementation LaunchArguments
 
 RCT_EXPORT_MODULE()
 
-#ifdef RCT_NEW_ARCH_ENABLED
 - (std::shared_ptr<facebook::react::TurboModule>)getTurboModule:
     (const facebook::react::ObjCTurboModule::InitParams &)params
 {
     return std::make_shared<facebook::react::NativeLaunchArgumentsSpecJSI>(params);
 }
-#endif
 
 - (dispatch_queue_t)methodQueue
 {