fix script according to author's advice

batched_inference.py

@@ -95,12 +95,11 @@ def train(tagging_is_running, model, dataloader, train_data, output_queue):
 
 
 def tag_writer(tagging_is_running, output_queue, threshold):
-    with open("tags_8034.json", "r") as file:
-        tags = json.load(file)
-    allowed_tags = sorted(tags)
-    del tags
-    allowed_tags.extend(["placeholder0"])
-    tag_count = len(allowed_tags)
+    with open("tags_8034.json", "r") as f:
+        tags = json.load(f)
+    tags.append("placeholder0")
+    tags = sorted(tags)
+    tag_count = len(tags)
     assert tag_count == 8035, f"The length of tag list is not correct. Correct: 8035, current: {tag_count}"
 
     while not (tagging_is_running.qsize() > 0 and output_queue.qsize() > 0):