Back out "[Diff Train][pytorch/executorch] Apply fixup patch to fbsource" #7298

Job	Run time
test-executorch-metal-build / macos-job	5m 56s
export-model-metal-artifact (openai, whisper-small, non-quantized) / macos-job	7m 25s
test-metal-backend-modules / macos-job	8m 25s
export-model-metal-artifact (mistralai, Voxtral-Mini-3B-2507, non-quantized) / macos-job	13m 38s
export-model-metal-artifact (nvidia, parakeet-tdt, non-quantized) / macos-job	9m 22s
export-model-metal-artifact (openai, whisper-large-v3-turbo, non-quantized) / macos-job	7m 57s
export-model-metal-artifact (nvidia, parakeet-tdt, quantized-int4-metal) / macos-job	9m 40s
test-model-metal-e2e (nvidia, parakeet-tdt, quantized-int4-metal) / macos-job	4m 44s
test-model-metal-e2e (mistralai, Voxtral-Mini-3B-2507, non-quantized) / macos-job	7m 48s
test-model-metal-e2e (openai, whisper-small, non-quantized) / macos-job	5m 35s
test-model-metal-e2e (nvidia, parakeet-tdt, non-quantized) / macos-job	5m 4s
test-model-metal-e2e (openai, whisper-large-v3-turbo, non-quantized) / macos-job	6m 13s
	1h 31m 47s

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