Remove unused RCTTurboModuleInteropBridgeProxy code (#57002)

Summary:

Changelog: [INTERNAL] Remove unused RCTTurboModuleInteropBridgeProxy code

Differential Revision: D106830105

Author: christophpurrer

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

@@ -153,7 +153,6 @@ - (void)initializeReactHostWithLaunchOptions:(NSDictionary *)launchOptions
 {
   // Enable TurboModule interop by default in Bridgeless mode
   RCTEnableTurboModuleInterop(YES);
-  RCTEnableTurboModuleInteropBridgeProxy(YES);
 
   [self createReactHostIfNeeded:launchOptions
             bundleConfiguration:bundleConfiguration

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

@@ -54,10 +54,6 @@ void RCTEnableTurboModule(BOOL enabled);
 BOOL RCTTurboModuleInteropEnabled(void);
 void RCTEnableTurboModuleInterop(BOOL enabled);
 
-// Turn on TurboModule interop's Bridge proxy
-BOOL RCTTurboModuleInteropBridgeProxyEnabled(void);
-void RCTEnableTurboModuleInteropBridgeProxy(BOOL enabled);
-
 // Turn on the fabric interop layer
 BOOL RCTFabricInteropLayerEnabled(void);
 void RCTEnableFabricInteropLayer(BOOL enabled);

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

@@ -209,17 +209,6 @@ void RCTEnableTurboModuleInterop(BOOL enabled)
   turboModuleInteropEnabled = enabled;
 }
 
-static BOOL turboModuleInteropBridgeProxyEnabled = NO;
-BOOL RCTTurboModuleInteropBridgeProxyEnabled(void)
-{
-  return turboModuleInteropBridgeProxyEnabled;
-}
-
-void RCTEnableTurboModuleInteropBridgeProxy(BOOL enabled)
-{
-  turboModuleInteropBridgeProxyEnabled = enabled;
-}
-
 static BOOL fabricInteropLayerEnabled = YES;
 BOOL RCTFabricInteropLayerEnabled()
 {