Disable nstextstorage_caching in OSS

Summary:
changelog: [iOS] Disable NSTextStorage caching in OSS

A [bug was reported](#37944) for NSTextStorage caching. Even thought I fixed the bug in D47019250, I want to disable the feature in OSS until the fix is verified in Facebook app.
My plan is to pick this commit for 0.72.1 and reenable NSTextStorage caching once the fix is validated.

Differential Revision: D47127912

fbshipit-source-id: 016de19b926b72195dbda1824d43e697fb98e85b

packages/react-native/ReactCommon/react/config/ReactNativeConfig.cpp

@@ -23,9 +23,6 @@ bool EmptyReactNativeConfig::getBool(const std::string &param) const {
   if (param == "react_fabric:enabled_layout_animations_ios") {
     return true;
   }
-  if (param == "react_fabric:enable_nstextstorage_caching") {
-    return true;
-  }
   return false;
 }