Drop RCT prefix from RCTRequired folder (#39955)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/39955

Align `RCTRequired` to the rest of the targets in `react-native-github/packages/react-native/Libraries`.

Changelog: [Internal]

Reviewed By: cipolleschi

Differential Revision: D50009827

fbshipit-source-id: c2ec9eb9e5fb081a2e2e8f53d33bc21dcf95b279

.gitignore

@@ -99,7 +99,7 @@ package-lock.json
 
 # Libs that shouldn't have Xcode project
 /packages/react-native/Libraries/FBLazyVector/**/*.xcodeproj
-/packages/react-native/Libraries/RCTRequired/**/*.xcodeproj
+/packages/react-native/Libraries/Required/**/*.xcodeproj
 /packages/react-native/React/CoreModules/**/*.xcodeproj
 /packages/react-native/React/FBReactNativeSpec/**/*.xcodeproj
 /packages/react-native-codegen/**/*.xcodeproj

packages/react-native/scripts/react_native_pods.rb

@@ -109,7 +109,7 @@ def use_react_native! (
   # The Pods which should be included in all projects
   pod 'FBLazyVector', :path => "#{prefix}/Libraries/FBLazyVector"
   pod 'FBReactNativeSpec', :path => "#{prefix}/React/FBReactNativeSpec" if !NewArchitectureHelper.new_arch_enabled
-  pod 'RCTRequired', :path => "#{prefix}/Libraries/RCTRequired"
+  pod 'RCTRequired', :path => "#{prefix}/Libraries/Required"
   pod 'RCTTypeSafety', :path => "#{prefix}/Libraries/TypeSafety", :modular_headers => true
   pod 'React', :path => "#{prefix}/"
   pod 'React-Core', :path => "#{prefix}/"

packages/rn-tester/Podfile.lock

@@ -1170,7 +1170,7 @@ DEPENDENCIES:
   - OpenSSL-Universal (= 1.1.1100)
   - RCT-Folly (from `../react-native/third-party-podspecs/RCT-Folly.podspec`)
   - RCT-Folly/Fabric (from `../react-native/third-party-podspecs/RCT-Folly.podspec`)
-  - RCTRequired (from `../react-native/Libraries/RCTRequired`)
+  - RCTRequired (from `../react-native/Libraries/Required`)
   - RCTTypeSafety (from `../react-native/Libraries/TypeSafety`)
   - React (from `../react-native/`)
   - React-callinvoker (from `../react-native/ReactCommon/callinvoker`)
@@ -1253,7 +1253,7 @@ EXTERNAL SOURCES:
   RCT-Folly:
     :podspec: "../react-native/third-party-podspecs/RCT-Folly.podspec"
   RCTRequired:
-    :path: "../react-native/Libraries/RCTRequired"
+    :path: "../react-native/Libraries/Required"
   RCTTypeSafety:
     :path: "../react-native/Libraries/TypeSafety"
   React: