Revert "feat: include tokens usage for streamed output (#4282)" #7560

Job	Run time
tests-diffusers	1m 59s
tests-parler-tts	6m 45s
tests-rerankers	2m 58s
tests-openvoice	6m 17s
tests-sentencetransformers	2m 45s
tests-transformers	1m 56s
tests-transformers-musicgen	3m 8s
tests-vallex	3m 20s
tests-coqui	4m 15s
	33m 23s

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