Revert D71582553 (#50410)

Summary: Pull Request resolved: #50410

Reviewed By: rozele

Differential Revision: D72190404

fbshipit-source-id: c24fe997ccad22bef018b635140126b3d729a00c

Author: generatedunixname89002005232357

packages/react-native/ReactCommon/react/renderer/componentregistry/ComponentDescriptorRegistry.cpp

@@ -10,7 +10,6 @@
 #include "componentNameByReactViewName.h"
 
 #include <react/debug/react_native_assert.h>
-#include <react/featureflags/ReactNativeFeatureFlags.h>
 #include <react/renderer/componentregistry/ComponentDescriptorProviderRegistry.h>
 #include <react/renderer/components/legacyviewmanagerinterop/UnstableLegacyViewManagerAutomaticComponentDescriptor.h>
 #include <react/renderer/components/legacyviewmanagerinterop/UnstableLegacyViewManagerAutomaticShadowNode.h>
@@ -84,21 +83,11 @@ const ComponentDescriptor& ComponentDescriptorRegistry::at(
   }
 
   if (it == _registryByName.end()) {
-    if (ReactNativeFeatureFlags::useFabricInterop()) {
-      auto componentDescriptor = std::make_shared<
-          const UnstableLegacyViewManagerAutomaticComponentDescriptor>(
-          parameters_, unifiedComponentName);
-      registerComponentDescriptor(componentDescriptor);
-      return *_registryByName.find(unifiedComponentName)->second;
-    } else {
-      if (_fallbackComponentDescriptor == nullptr) {
-        throw std::invalid_argument(
-            ("Unable to find componentDescriptor for " + unifiedComponentName)
-                .c_str());
-      } else {
-        return *_fallbackComponentDescriptor.get();
-      }
-    }
+    auto componentDescriptor = std::make_shared<
+        const UnstableLegacyViewManagerAutomaticComponentDescriptor>(
+        parameters_, unifiedComponentName);
+    registerComponentDescriptor(componentDescriptor);
+    return *_registryByName.find(unifiedComponentName)->second;
   }
 
   return *it->second;