From e524fe5c1039038e0a3d1daeeeaa20dddf9f402b Mon Sep 17 00:00:00 2001
From: Christoph Purrer <chpurrer@meta.com>
Date: Thu, 23 Jul 2026 20:10:03 -0700
Subject: [PATCH] Don't register unused RCTTimingCls in RN iOS (#57657)

Summary:

Changelog: [INTERNAL]

RCTTiming is NOT used in the RN new architecture: https://github.com/react/react-native/pull/57081

And will be deleted in: https://github.com/react/react-native/pull/57037

This change removes it from the binary

Differential Revision: D113474826
---
 packages/react-native/React/CoreModules/CoreModulesPlugins.h | 2 ++
 .../react-native/React/CoreModules/CoreModulesPlugins.mm     | 4 ----
 packages/react-native/React/CoreModules/RCTTiming.mm         | 5 -----
 3 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/packages/react-native/React/CoreModules/CoreModulesPlugins.h b/packages/react-native/React/CoreModules/CoreModulesPlugins.h
index e62d4d157bb0..618c5535d4c9 100644
--- a/packages/react-native/React/CoreModules/CoreModulesPlugins.h
+++ b/packages/react-native/React/CoreModules/CoreModulesPlugins.h
@@ -49,7 +49,9 @@ Class RCTPlatformCls(void) __attribute__((used));
 Class RCTRedBoxCls(void) __attribute__((used));
 Class RCTSourceCodeCls(void) __attribute__((used));
 Class RCTStatusBarManagerCls(void) __attribute__((used));
+#ifndef RCT_REMOVE_LEGACY_ARCH
 Class RCTTimingCls(void) __attribute__((used));
+#endif
 Class RCTWebSocketModuleCls(void) __attribute__((used));
 Class RCTBlobManagerCls(void) __attribute__((used));
 
diff --git a/packages/react-native/React/CoreModules/CoreModulesPlugins.mm b/packages/react-native/React/CoreModules/CoreModulesPlugins.mm
index f0844ee8afdf..005f75065a63 100644
--- a/packages/react-native/React/CoreModules/CoreModulesPlugins.mm
+++ b/packages/react-native/React/CoreModules/CoreModulesPlugins.mm
@@ -100,10 +100,6 @@ Class RCTCoreModulesClassProvider(const char *name)
     return RCTStatusBarManagerCls();
   }
 
-  if (name == "Timing"sv) {
-    return RCTTimingCls();
-  }
-
   if (name == "WebSocketModule"sv) {
     return RCTWebSocketModuleCls();
   }
diff --git a/packages/react-native/React/CoreModules/RCTTiming.mm b/packages/react-native/React/CoreModules/RCTTiming.mm
index 14ee7844c7fe..ef9e2d3fa00f 100644
--- a/packages/react-native/React/CoreModules/RCTTiming.mm
+++ b/packages/react-native/React/CoreModules/RCTTiming.mm
@@ -428,8 +428,3 @@ - (void)createTimerForNextFrame:(nonnull NSNumber *)callbackID
 }
 
 @end
-
-Class RCTTimingCls(void)
-{
-  return RCTTiming.class;
-}