Back out "Move RuntimeScheduler initialisation to the start of the ru…

…ntime"

Summary:
Changelog: [internal]

Original commit changeset: cbc650f6fbce

Fix app size regression.

Reviewed By: julian-krzeminski

Differential Revision: D29162397

fbshipit-source-id: 54b344c2da631aaa704fd640cdb2a71239ea754f

ReactAndroid/src/main/java/com/facebook/react/BUCK

@@ -39,7 +39,6 @@ rn_android_library(
         react_native_target("java/com/facebook/react/modules/bundleloader:bundleloader"),
         react_native_target("java/com/facebook/react/modules/debug:debug"),
         react_native_target("java/com/facebook/react/modules/fabric:fabric"),
-        react_native_target("java/com/facebook/react/fabric:fabric"),
         react_native_target("java/com/facebook/react/modules/debug:interfaces"),
         react_native_target("java/com/facebook/react/modules/deviceinfo:deviceinfo"),
         react_native_target("java/com/facebook/react/modules/systeminfo:systeminfo"),

ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java

@@ -83,7 +83,6 @@
 import com.facebook.react.devsupport.interfaces.DevBundleDownloadListener;
 import com.facebook.react.devsupport.interfaces.DevSupportManager;
 import com.facebook.react.devsupport.interfaces.PackagerStatusCallback;
-import com.facebook.react.fabric.RuntimeSchedulerManager;
 import com.facebook.react.modules.appearance.AppearanceModule;
 import com.facebook.react.modules.appregistry.AppRegistry;
 import com.facebook.react.modules.core.DefaultHardwareBackBtnHandler;
@@ -163,7 +162,6 @@ public interface ReactInstanceEventListener {
   private final DevSupportManager mDevSupportManager;
   private final boolean mUseDeveloperSupport;
   private @Nullable ComponentNameResolverManager mComponentNameResolverManager;
-  private @Nullable RuntimeSchedulerManager mRuntimeSchedulerManager;
   private final @Nullable NotThreadSafeBridgeIdleDebugListener mBridgeIdleDebugListener;
   private final Object mReactContextLock = new Object();
   private @Nullable volatile ReactContext mCurrentReactContext;
@@ -720,7 +718,6 @@ public void destroy() {
       mViewManagerNames = null;
     }
     mComponentNameResolverManager = null;
-    mRuntimeSchedulerManager = null;
     FLog.d(ReactConstants.TAG, "ReactInstanceManager has been destroyed");
   }
 
@@ -1353,10 +1350,6 @@ public String[] getComponentNames() {
               });
       catalystInstance.setGlobalVariable("__fbStaticViewConfig", "true");
     }
-    if (ReactFeatureFlags.enableRuntimeScheduler) {
-      mRuntimeSchedulerManager = new RuntimeSchedulerManager(catalystInstance.getRuntimeExecutor());
-    }
-
     ReactMarker.logMarker(ReactMarkerConstants.PRE_RUN_JS_BUNDLE_START);
     Systrace.beginSection(TRACE_TAG_REACT_JAVA_BRIDGE, "runJSBundle");
     catalystInstance.runJSBundle();

ReactAndroid/src/main/java/com/facebook/react/config/ReactFeatureFlags.java

@@ -44,8 +44,6 @@ public class ReactFeatureFlags {
   /** Enables Static ViewConfig in RN Android native code. */
   public static boolean enableExperimentalStaticViewConfigs = false;
 
-  public static boolean enableRuntimeScheduler = false;
-
   /** Enables a more aggressive cleanup during destruction of ReactContext */
   public static boolean enableReactContextCleanupFix = false;
 

ReactAndroid/src/main/java/com/facebook/react/fabric/jni/OnLoad.cpp

@@ -12,7 +12,6 @@
 #include "CoreComponentsRegistry.h"
 #include "EventBeatManager.h"
 #include "EventEmitterWrapper.h"
-#include "RuntimeSchedulerManager.h"
 #include "StateWrapperImpl.h"
 #include "SurfaceHandlerBinding.h"
 
@@ -25,6 +24,5 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *) {
     facebook::react::ComponentFactory::registerNatives();
     facebook::react::CoreComponentsRegistry::registerNatives();
     facebook::react::SurfaceHandlerBinding::registerNatives();
-    facebook::react::RuntimeSchedulerManager::registerNatives();
   });
 }