temp. removed the additional pdf to text func

utils/haystack.py

@@ -5,15 +5,11 @@ from haystack import Pipeline
 from haystack.schema import Answer
 from haystack.document_stores import BaseDocumentStore
 from haystack.document_stores import InMemoryDocumentStore, OpenSearchDocumentStore, WeaviateDocumentStore
-from haystack.nodes import EmbeddingRetriever, FARMReader, PromptNode, PreProcessor, TextConverter, FileTypeClassifier, PDFToTextConverter
+from haystack.nodes import EmbeddingRetriever, FARMReader, PromptNode, PreProcessor
+#from haystack.nodes import TextConverter, FileTypeClassifier, PDFToTextConverter
 from milvus_haystack import MilvusDocumentStore
 #Use this file to set up your Haystack pipeline and querying
 
-file_type_classifier = FileTypeClassifier()
-
-text_converter = TextConverter()
-pdf_converter = PDFToTextConverter()
-
 @st.cache_resource(show_spinner=False)
 def start_preprocessor_node():
     print('initializing preprocessor node')