Fix OSS build (#116)

Summary:
Pull Request resolved: #116

Remove an unused line

Reviewed By: SS-JIA

Differential Revision: D48645076

fbshipit-source-id: d834cc45c7dde04b14ec89c280a7d5f3224d1688

Author: kirklandsign

.ci/scripts/gather_test_models.py

@@ -10,7 +10,6 @@
 from typing import Any
 
 from examples.models import MODEL_NAME_TO_MODEL, MODEL_NAME_TO_OPTIONS
-from executorch.examples.models.models import MODEL_NAME_TO_OPTIONS
 
 BUILD_TOOLS = [
     "buck2",