Apply suggestions from code review

Co-authored-by: James M Snell <[email protected]>

Author: guybedford

src/workerd/io/worker-fs.c++

@@ -1757,7 +1757,6 @@ void writeStdio(jsg::Lock& js, VirtualFileSystem::Stdio type, kj::ArrayPtr<const
   size_t endPos = chars.size();
   if (endPos > 0 && chars[endPos - 1] == '\n') endPos--;
 
-  // KJ_LOG(WARNING, "writeStdio called", "content:", chars);
 
   KJ_IF_SOME(console, js.global().get(js, "console"_kj).tryCast<jsg::JsObject>()) {
     auto method = console.get(js, "log"_kj);
@@ -1767,7 +1766,7 @@ void writeStdio(jsg::Lock& js, VirtualFileSystem::Stdio type, kj::ArrayPtr<const
 
       kj::String outputStr;
       auto processStdioPrefixed = Worker::Isolate::from(js).getProcessStdioPrefixed();
-      if (processStdioPrefixed == ProcessStdioPrefixed::YES) {
+      if (processStdioPrefixed) {
         if (endPos == 0) {
           v8::Local<v8::Value> args[] = {
             js.str(type == VirtualFileSystem::Stdio::OUT ? "stdout:"_kj : "stderr:"_kj)};