docs(optimum): remove warm_up from examples (#2822)

Co-authored-by: David S. Batista <dsbatista@gmail.com>

Author: GunaPalanivel

integrations/optimum/src/haystack_integrations/components/embedders/optimum/optimum_document_embedder.py

@@ -31,7 +31,7 @@ class OptimumDocumentEmbedder:
     doc = Document(content="I love pizza!")
 
     document_embedder = OptimumDocumentEmbedder(model="sentence-transformers/all-mpnet-base-v2")
-    document_embedder.warm_up()
+    # Components warm up automatically on first run.
 
     result = document_embedder.run([doc])
     print(result["documents"][0].embedding)

integrations/optimum/src/haystack_integrations/components/embedders/optimum/optimum_text_embedder.py

@@ -27,7 +27,7 @@ class OptimumTextEmbedder:
     text_to_embed = "I love pizza!"
 
     text_embedder = OptimumTextEmbedder(model="sentence-transformers/all-mpnet-base-v2")
-    text_embedder.warm_up()
+    # Components warm up automatically on first run.
 
     print(text_embedder.run(text_to_embed))