Remove JSC related files from the repo (#51945)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51945

Remove code from jsc folder from React Native

## Changelog:
[iOS][Removed] - Remove code from jsc folder from React Native

Reviewed By: rshest

Differential Revision: D76419587

fbshipit-source-id: 6d5079c8f2843872172620601629e9643c7debdc

packages/react-native/React/CxxBridge/JSCExecutorFactory.h

@@ -1,31 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-#pragma once
-
-#ifndef RCT_FIT_RM_OLD_RUNTIME
-
-#include <jsireact/JSIExecutor.h>
-
-namespace facebook::react {
-
-class JSCExecutorFactory : public JSExecutorFactory {
- public:
-  explicit JSCExecutorFactory(JSIExecutor::RuntimeInstaller runtimeInstaller)
-      : runtimeInstaller_(std::move(runtimeInstaller)) {}
-
-  std::unique_ptr<JSExecutor> createJSExecutor(
-      std::shared_ptr<ExecutorDelegate> delegate,
-      std::shared_ptr<MessageQueueThread> jsQueue) override;
-
- private:
-  JSIExecutor::RuntimeInstaller runtimeInstaller_;
-};
-
-} // namespace facebook::react
-
-#endif // RCT_FIT_RM_OLD_RUNTIME

packages/react-native/React/CxxBridge/JSCExecutorFactory.mm

@@ -1,28 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-#include "JSCExecutorFactory.h"
-
-#ifndef RCT_FIT_RM_OLD_RUNTIME
-
-#import <jsc/JSCRuntime.h>
-
-#import <memory>
-
-namespace facebook::react {
-
-std::unique_ptr<JSExecutor> JSCExecutorFactory::createJSExecutor(
-    std::shared_ptr<ExecutorDelegate> delegate,
-    std::shared_ptr<MessageQueueThread> __unused jsQueue)
-{
-  return std::make_unique<JSIExecutor>(
-      facebook::jsc::makeJSCRuntime(), delegate, JSIExecutor::defaultTimeoutInvoker, runtimeInstaller_);
-}
-
-} // namespace facebook::react
-
-#endif // RCT_FIT_RM_OLD_RUNTIME

packages/react-native/React/Runtime/RCTJscInstanceFactory.h

@@ -1,20 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-#import <react/runtime/JSRuntimeFactoryCAPI.h>
-
-#pragma once
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-JSRuntimeFactoryRef jsrt_create_jsc_factory(void);
-
-#ifdef __cplusplus
-}
-#endif

packages/react-native/React/Runtime/RCTJscInstanceFactory.mm

@@ -1,20 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-#import "RCTJscInstanceFactory.h"
-#import <ReactCommon/RCTJscInstance.h>
-
-using namespace facebook::react;
-
-extern "C" {
-
-JSRuntimeFactoryRef jsrt_create_jsc_factory(void)
-{
-  return reinterpret_cast<JSRuntimeFactoryRef>(new RCTJscInstance());
-}
-
-} // extern "C"

packages/react-native/ReactCommon/jsc/React-jsc.podspec

@@ -1,37 +0,0 @@
-# Copyright (c) Meta Platforms, Inc. and affiliates.
-#
-# This source code is licensed under the MIT license found in the
-# LICENSE file in the root directory of this source tree.
-
-require "json"
-
-package = JSON.parse(File.read(File.join(__dir__, "..", "..", "package.json")))
-version = package['version']
-
-source = { :git => 'https://github.com/facebook/react-native.git' }
-if version == '1000.0.0'
-  # This is an unpublished version, use the latest commit hash of the react-native repo, which we’re presumably in.
-  source[:commit] = `git rev-parse HEAD`.strip if system("git rev-parse --git-dir > /dev/null 2>&1")
-else
-  source[:tag] = "v#{version}"
-end
-
-Pod::Spec.new do |s|
-  s.name                   = "React-jsc"
-  s.version                = version
-  s.summary                = "JavaScriptCore engine for React Native"
-  s.homepage               = "https://reactnative.dev/"
-  s.license                = package["license"]
-  s.author                 = "Meta Platforms, Inc. and its affiliates"
-  s.platforms              = min_supported_versions
-  s.source                 = source
-  s.source_files           = "JSCRuntime.{cpp,h}"
-  s.exclude_files          = "**/test/*"
-  s.weak_framework         = "JavaScriptCore"
-
-  s.dependency "React-jsi", version
-
-  s.subspec "Fabric" do |ss|
-    ss.pod_target_xcconfig  = { "OTHER_CFLAGS" => "$(inherited)", "DEFINES_MODULE" => "YES" }
-  end
-end