[CI][Bugfix] remove module-level skip_if_gated_repo_inaccessible in flux kontext e2e (#5250) (#5297)

Signed-off-by: wangyu <410167048@qq.com>

tests/e2e/online_serving/test_flux_kontext_expansion.py

@@ -5,7 +5,6 @@ and are supported by the FluxKontext model.
 
 import pytest
 
-from tests.helpers import skip_if_gated_repo_inaccessible
 from tests.helpers.mark import hardware_marks
 from tests.helpers.media import generate_synthetic_image
 from tests.helpers.runtime import OmniServer, OmniServerParams, OpenAIClientHandler, dummy_messages_from_mix_data
@@ -15,7 +14,6 @@ pytestmark = [pytest.mark.diffusion, pytest.mark.slow]
 EDIT_PROMPT = "Transform this modern, geometrist image into a Vincent van Gogh style impressionist painting."
 NEGATIVE_PROMPT = "blurry, low quality, modern, geometrist"
 MODEL = "black-forest-labs/FLUX.1-Kontext-dev"
-skip_if_gated_repo_inaccessible(MODEL)
 PARALLEL_FEATURE_MARKS = hardware_marks(res={"cuda": "L4"}, num_cards=2)