Delete unnecessary DevSupportSoLoader (#50198)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/50198

We don't really need another wrapper around SoLoader to decide when to load a library. SoLoader already does this for us. See:
https://github.com/facebook/SoLoader/blob/62c2028a07f146bbc56c0337dacf226fcd6f95ef/java/com/facebook/soloader/SoLoader.java#L1070-L1139

I'm removing this extra unnecessary class.

Changelog:
[Internal] [Changed] - Delete unnecessary DevSupportSoLoader

Reviewed By: huntie

Differential Revision: D71636985

fbshipit-source-id: b6df35b61d4e376503c158e921ca970ad77a6deb

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/devsupport/CxxInspectorPackagerConnection.java

@@ -13,6 +13,7 @@ import androidx.annotation.Nullable;
 import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.jni.HybridData;
 import com.facebook.proguard.annotations.DoNotStrip;
+import com.facebook.soloader.SoLoader;
 import java.io.Closeable;
 import java.util.concurrent.TimeUnit;
 import okhttp3.OkHttpClient;
@@ -25,7 +26,7 @@ import okhttp3.WebSocketListener;
 /* package */ @Nullsafe(Nullsafe.Mode.LOCAL)
 class CxxInspectorPackagerConnection implements IInspectorPackagerConnection {
   static {
-    DevSupportSoLoader.staticInit();
+    SoLoader.loadLibrary("react_devsupportjni");
   }
 
   @DoNotStrip private final HybridData mHybridData;

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/devsupport/DevSupportSoLoader.kt

@@ -1,24 +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.
- */
-
-package com.facebook.react.devsupport
-
-import com.facebook.soloader.SoLoader
-
-internal object DevSupportSoLoader {
-  @Volatile private var didInit: Boolean = false
-
-  @JvmStatic
-  @Synchronized
-  fun staticInit() {
-    if (didInit) {
-      return
-    }
-    SoLoader.loadLibrary("react_devsupportjni")
-    didInit = true
-  }
-}

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/devsupport/InspectorFlags.kt

@@ -8,12 +8,13 @@
 package com.facebook.react.devsupport
 
 import com.facebook.proguard.annotations.DoNotStrip
+import com.facebook.soloader.SoLoader
 
 /** JNI wrapper for `jsinspector_modern::InspectorFlags`. */
 @DoNotStrip
 internal object InspectorFlags {
   init {
-    DevSupportSoLoader.staticInit()
+    SoLoader.loadLibrary("react_devsupportjni")
   }
 
   @DoNotStrip @JvmStatic external fun getFuseboxEnabled(): Boolean