openai[patch]: remove xfails from image token counting tests (#30963)

These appear to be passing again.

Author: ccurme

libs/partners/openai/tests/integration_tests/chat_models/test_base.py

@@ -736,12 +736,6 @@ async def test_openai_response_headers_async(use_responses_api: bool) -> None:
     assert "content-type" in headers
 
 
-@pytest.mark.xfail(
-    reason=(
-        "As of 12.19.24 OpenAI API returns 1151 instead of 1118. Not clear yet if "
-        "this is an undocumented API change or a bug on their end."
-    )
-)
 def test_image_token_counting_jpeg() -> None:
     model = ChatOpenAI(model="gpt-4o", temperature=0)
     image_url = "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"
@@ -774,12 +768,6 @@ def test_image_token_counting_jpeg() -> None:
     assert expected == actual
 
 
-@pytest.mark.xfail(
-    reason=(
-        "As of 12.19.24 OpenAI API returns 871 instead of 779. Not clear yet if "
-        "this is an undocumented API change or a bug on their end."
-    )
-)
 def test_image_token_counting_png() -> None:
     model = ChatOpenAI(model="gpt-4o", temperature=0)
     image_url = "https://upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png"