diff --git a/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.cpp b/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.cpp
index 2a7bbb51429..c3915063a6a 100644
--- a/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.cpp
+++ b/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.cpp
@@ -9,59 +9,6 @@
 
 namespace facebook::react {
 
-static jsi::Value deepCopyJSIValue(jsi::Runtime& rt, const jsi::Value& value) {
-  if (value.isNull()) {
-    return jsi::Value::null();
-  }
-
-  if (value.isBool()) {
-    return jsi::Value(value.getBool());
-  }
-
-  if (value.isNumber()) {
-    return jsi::Value(value.getNumber());
-  }
-
-  if (value.isString()) {
-    return value.getString(rt);
-  }
-
-  if (value.isObject()) {
-    jsi::Object o = value.getObject(rt);
-    if (o.isArray(rt)) {
-      return deepCopyJSIArray(rt, o.getArray(rt));
-    }
-    if (o.isFunction(rt)) {
-      return o.getFunction(rt);
-    }
-    return deepCopyJSIObject(rt, o);
-  }
-
-  return jsi::Value::undefined();
-}
-
-jsi::Object deepCopyJSIObject(jsi::Runtime& rt, const jsi::Object& obj) {
-  jsi::Object copy(rt);
-  jsi::Array propertyNames = obj.getPropertyNames(rt);
-  size_t size = propertyNames.size(rt);
-  for (size_t i = 0; i < size; i++) {
-    jsi::String name = propertyNames.getValueAtIndex(rt, i).getString(rt);
-    jsi::Value value = obj.getProperty(rt, name);
-    copy.setProperty(rt, name, deepCopyJSIValue(rt, value));
-  }
-  return copy;
-}
-
-jsi::Array deepCopyJSIArray(jsi::Runtime& rt, const jsi::Array& arr) {
-  size_t size = arr.size(rt);
-  jsi::Array copy(rt, size);
-  for (size_t i = 0; i < size; i++) {
-    copy.setValueAtIndex(
-        rt, i, deepCopyJSIValue(rt, arr.getValueAtIndex(rt, i)));
-  }
-  return copy;
-}
-
 Promise::Promise(jsi::Runtime& rt, jsi::Function resolve, jsi::Function reject)
     : LongLivedObject(rt),
       resolve_(std::move(resolve)),
diff --git a/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.h b/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.h
index 005fc1504ef..704116f97eb 100644
--- a/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.h
+++ b/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.h
@@ -7,18 +7,14 @@
 
 #pragma once
 
+#include <jsi/jsi.h>
+#include <react/bridging/LongLivedObject.h>
 #include <cassert>
+#include <functional>
 #include <string>
 
-#include <jsi/jsi.h>
-#include <react/bridging/CallbackWrapper.h>
-#include <react/bridging/LongLivedObject.h>
-
 namespace facebook::react {
 
-jsi::Object deepCopyJSIObject(jsi::Runtime& rt, const jsi::Object& obj);
-jsi::Array deepCopyJSIArray(jsi::Runtime& rt, const jsi::Array& arr);
-
 struct Promise : public LongLivedObject {
   Promise(jsi::Runtime& rt, jsi::Function resolve, jsi::Function reject);