Remove FileIoHandler (#58096)

Summary:
Pull Request resolved: #58096

This was added ages to serve an internal use-case and is a major security risk if left unguarded in production (D4650999 / S670581). It was never ported to iOS and a platform inconsistency.

Changelog: [Android][Changed] Removed FileIoHandler packager message handlers

(Not breaking since this is a devtooling-related API change: https://reactnative.dev/releases/versioning-policy#what-is-a-breaking-change)

Reviewed By: christophpurrer, cortinico

Differential Revision: D117176703

fbshipit-source-id: c79cb8d7758706b1871f81e72c6e356ae32ed6a9

Author: javache

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -2960,12 +2960,6 @@ public abstract interface class com/facebook/react/modules/websocket/WebSocketMo
 	public abstract fun onMessage (Lokio/ByteString;Lcom/facebook/react/bridge/WritableMap;)V
 }
 
-public final class com/facebook/react/packagerconnection/FileIoHandler : java/lang/Runnable {
-	public fun <init> ()V
-	public final fun handlers ()Ljava/util/Map;
-	public fun run ()V
-}
-
 public final class com/facebook/react/packagerconnection/JSPackagerClient : com/facebook/react/packagerconnection/ReconnectingWebSocket$MessageCallback {
 	public fun <init> (Ljava/lang/String;Lcom/facebook/react/packagerconnection/PackagerConnectionSettings;Ljava/util/Map;)V
 	public fun <init> (Ljava/lang/String;Lcom/facebook/react/packagerconnection/PackagerConnectionSettings;Ljava/util/Map;Lcom/facebook/react/packagerconnection/ReconnectingWebSocket$ConnectionCallback;)V

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

@@ -27,7 +27,6 @@ import com.facebook.react.devsupport.interfaces.PackagerStatusCallback
 import com.facebook.react.modules.debug.interfaces.DeveloperSettings
 import com.facebook.react.modules.systeminfo.AndroidInfoHelpers.getFriendlyDeviceName
 import com.facebook.react.modules.systeminfo.AndroidInfoHelpers.getInspectorHostMetadata
-import com.facebook.react.packagerconnection.FileIoHandler
 import com.facebook.react.packagerconnection.JSPackagerClient
 import com.facebook.react.packagerconnection.NotificationOnlyHandler
 import com.facebook.react.packagerconnection.PackagerConnectionSettings
@@ -160,7 +159,6 @@ public open class DevServerHelper(
                   }
                 }
             commandListener.customCommandHandlers()?.let { handlers.putAll(it) }
-            handlers.putAll(FileIoHandler().handlers())
 
             val onPackagerConnectedCallback: ReconnectingWebSocket.ConnectionCallback =
                 object : ReconnectingWebSocket.ConnectionCallback {