Comment out MavenArtifactDownloader so we can get the recipes working again without redeploying workers

Author: sambsnyd

rewrite-maven/src/main/java/org/openrewrite/maven/utilities/JavaSourceSetUpdater.java

@@ -43,7 +43,7 @@
 public class JavaSourceSetUpdater {
     static final String TYPE_CACHE_KEY = "org.openrewrite.maven.jarTypeCache";
 
-    private final MavenArtifactDownloader downloader;
+//    private final MavenArtifactDownloader downloader;
     private final Map<String, List<JavaType.FullyQualified>> typeCache;
 
     @SuppressWarnings("unchecked")
@@ -52,7 +52,7 @@ public JavaSourceSetUpdater(ExecutionContext ctx) {
         HttpSender httpSender = HttpSenderExecutionContextView.view(ctx).getHttpSender();
         // Download failures are not fatal for JavaSourceSet updates — degrade gracefully
         Consumer<Throwable> onError = t -> {};
-        this.downloader = new MavenArtifactDownloader(mctx.getArtifactCache(), mctx.getSettings(), httpSender, onError);
+//        this.downloader = new MavenArtifactDownloader(mctx.getArtifactCache(), mctx.getSettings(), httpSender, onError);
         this.typeCache = (Map<String, List<JavaType.FullyQualified>>) ctx.getMessages()
                 .computeIfAbsent(TYPE_CACHE_KEY, k -> new ConcurrentHashMap<>());
     }