Delete dead bridge flag functions and module hooks

Summary:
Remove the always-on TurboModule flag functions, the unread accessibility-manager flag, the uncalled `batchDidComplete` hook, and the unused `RCTJavaScriptCallback` typedef. Deprecate the ignored `newArchEnabled:` configuration initializers, which external clients still call.

Changelog:
[iOS][Removed] - Remove dead `RCTBridge` flag functions, `batchDidComplete`, and unused callback typedef

Differential Revision: D127294780

Author: christophpurrer

packages/react-native/Libraries/AppDelegate/RCTDefaultReactNativeFactoryDelegate.mm

@@ -105,11 +105,6 @@ - (void)hostDidStart:(RCTHost *)host
 
 #pragma mark - RCTArchConfiguratorProtocol
 
-- (BOOL)newArchEnabled
-{
-  return YES;
-}
-
 - (Class)getModuleClassFromName:(const char *)name
 {
   return nullptr;

packages/react-native/Libraries/AppDelegate/RCTReactNativeFactory.mm

@@ -289,7 +289,7 @@ - (RCTRootViewFactory *)createRCTRootViewFactory
   };
 
   RCTRootViewFactoryConfiguration *configuration =
-      [[RCTRootViewFactoryConfiguration alloc] initWithBundleURLBlock:bundleUrlBlock newArchEnabled:YES];
+      [[RCTRootViewFactoryConfiguration alloc] initWithBundleURLBlock:bundleUrlBlock];
 
   configuration.customizeRootView = ^(UIView *_Nonnull rootView) {
     [weakSelf.delegate customizeRootView:(RCTRootView *)rootView];

packages/react-native/Libraries/AppDelegate/RCTRootViewFactory.h

@@ -56,9 +56,11 @@ typedef void (^RCTLoadSourceForBridgeWithProgressBlock)(
  *
  */
 - (instancetype)initWithBundleURLBlock:(RCTBundleURLBlock)bundleURLBlock
-                        newArchEnabled:(BOOL)newArchEnabled NS_DESIGNATED_INITIALIZER;
+                        newArchEnabled:(BOOL)newArchEnabled NS_DESIGNATED_INITIALIZER
+    __deprecated_msg("The flag is ignored; use initWithBundleURLBlock:.");
 
-- (instancetype)initWithBundleURL:(NSURL *)bundleURL newArchEnabled:(BOOL)newArchEnabled;
+- (instancetype)initWithBundleURL:(NSURL *)bundleURL
+                   newArchEnabled:(BOOL)newArchEnabled __deprecated_msg("The flag is ignored; use initWithBundleURL:.");
 
 /**
  * Block that allows to override logic of creating root view instance.

packages/react-native/React/Base/RCTBridge.h

@@ -43,15 +43,6 @@ NSString *RCTBridgeModuleNameForClass(Class bridgeModuleClass);
  */
 NSMutableArray<NSString *> *getModulesLoadedWithOldArch(void);
 
-/**
- * The New Architecture is enabled by default. These APIs are no-ops and will
- * be removed in a future release.
- */
-BOOL RCTTurboModuleEnabled(void)
-    __attribute__((deprecated("TurboModules are always enabled; this always returns YES (NO in test env).")));
-void RCTEnableTurboModule(BOOL enabled)
-    __attribute__((deprecated("No-op. The New Architecture is enabled by default.")));
-
 #ifndef RCT_REMOVE_LEGACY_MODULE_INTEROP
 // Turn on TurboModule interop
 BOOL RCTTurboModuleInteropEnabled(void);
@@ -64,9 +55,6 @@ BOOL RCTFabricInteropLayerEnabled(void);
 void RCTEnableFabricInteropLayer(BOOL enabled);
 #endif // RCT_REMOVE_LEGACY_COMPONENT_INTEROP
 
-BOOL RCTUIManagerDispatchAccessibilityManagerInitOntoMain(void);
-void RCTUIManagerSetDispatchAccessibilityManagerInitOntoMain(BOOL enabled);
-
 typedef enum {
   kRCTBridgeProxyLoggingLevelNone,
   kRCTBridgeProxyLoggingLevelWarning,

packages/react-native/React/Base/RCTBridge.mm

@@ -181,16 +181,6 @@ void RCTRegisterModule(Class moduleClass)
   return RCTDropReactPrefixes(name);
 }
 
-BOOL RCTTurboModuleEnabled(void)
-{
-  return YES;
-}
-
-void RCTEnableTurboModule(BOOL enabled)
-{
-  // The new Architecture is enabled by default and we are ignoring changes to the TurboModule system.
-}
-
 #ifndef RCT_REMOVE_LEGACY_MODULE_INTEROP
 static BOOL turboModuleInteropEnabled = NO;
 BOOL RCTTurboModuleInteropEnabled(void)
@@ -227,17 +217,6 @@ void RCTSetTurboModuleInteropBridgeProxyLogLevel(RCTBridgeProxyLoggingLevel logL
   bridgeProxyLoggingLevel = logLevel;
 }
 
-BOOL kDispatchAccessibilityManagerInitOntoMain = NO;
-BOOL RCTUIManagerDispatchAccessibilityManagerInitOntoMain(void)
-{
-  return kDispatchAccessibilityManagerInitOntoMain;
-}
-
-void RCTUIManagerSetDispatchAccessibilityManagerInitOntoMain(BOOL enabled)
-{
-  kDispatchAccessibilityManagerInitOntoMain = enabled;
-}
-
 @implementation RCTBridge
 - (void)registerSegmentWithId:(NSUInteger)segmentId path:(NSString *)path
 {

packages/react-native/React/Base/RCTBridgeModule.h

@@ -402,11 +402,6 @@ RCT_EXTERN_C_END
  */
 - (NSDictionary *)constantsToExport;
 
-/**
- * Notifies the module that a batch of JS method invocations has just completed.
- */
-- (void)batchDidComplete RCT_DEPRECATED;
-
 @end
 
 /**

packages/react-native/React/Base/RCTJavaScriptExecutor.h

@@ -12,5 +12,3 @@
 
 typedef void (^RCTJavaScriptCompleteBlock)(NSError *__strong)
     __deprecated_msg("This api will be removed along with the bridge.");
-typedef void (^RCTJavaScriptCallback)(__strong id, NSError *__strong)
-    __deprecated_msg("This api will be removed along with the bridge.");

packages/react-native/React/CoreModules/RCTPerfMonitor.mm

@@ -22,7 +22,6 @@
 #import <React/RCTFPSGraph.h>
 #import <React/RCTInitializing.h>
 #import <React/RCTInvalidating.h>
-#import <React/RCTJavaScriptExecutor.h>
 #import <React/RCTPerformanceLogger.h>
 #import <React/RCTPerformanceLoggerLabels.h>
 #import <React/RCTRootView.h>

packages/react-native/ReactCommon/react/nativemodule/core/platform/ios/ReactCommon/RCTTurboModule.h

@@ -19,10 +19,6 @@
 #import <string>
 #import <unordered_map>
 
-#define RCT_IS_TURBO_MODULE_CLASS(klass) \
-  ((RCTTurboModuleEnabled() && [(klass) conformsToProtocol:@protocol(RCTTurboModule)]))
-#define RCT_IS_TURBO_MODULE_INSTANCE(module) RCT_IS_TURBO_MODULE_CLASS([(module) class])
-
 namespace facebook::react {
 
 class CallbackWrapper;

scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api

@@ -2522,7 +2522,6 @@ protocol RCTBridgeModule : public NSObject {
   public virtual _Nullable NSArray<id<RCTBridgeMethod>>* methodsToExport();
   public virtual static BOOL requiresMainQueueSetup();
   public virtual static NSString* moduleName();
-  public virtual void batchDidComplete();
 }
 
 protocol RCTCallInvokerModule : public NSObject {