Update app.py

app.py

@@ -65,7 +65,6 @@ def chunk(text, words, splitter_selection, slider_overlap):
         text_splits = [split.page_content for split in splits]
     elif splitter_selection == "Recursive Character Text Splitter":
         text_splitter = RecursiveCharacterTextSplitter(
-            separator="",
             chunk_size=words,
             chunk_overlap=slider_overlap,
             length_function=len,