drop unstructured examples (#854)

Author: mattseddon

examples/llm_and_nlp/unstructured-embeddings-gen.py

@@ -106,11 +106,7 @@ examples = [
   "datachain[tests]",
   "defusedxml",
   "accelerate",
-  "unstructured_ingest[embed-huggingface]",
-  "unstructured[pdf]<0.16.12",
-  "pdfplumber==0.11.5",
   "huggingface_hub[hf_transfer]",
-  "onnx==1.16.1",
   "ultralytics==8.3.64",
   "open_clip_torch"
 ]