Cleanup extract to toolcache feature flag #4233

Job	Run time
Resolve environment (windows-latest, default)	2m 24s
Resolve environment (ubuntu-latest, linked)	39s
Resolve environment (ubuntu-latest, default)	38s
Resolve environment (macos-latest, default)	2m 43s
Resolve environment (windows-latest, nightly-latest)	2m 38s
Resolve environment (windows-latest, linked)	2m 37s
Resolve environment (macos-latest, nightly-latest)	1m 54s
Resolve environment (ubuntu-latest, nightly-latest)	40s
Resolve environment (macos-latest, linked)	1m 47s
	16m 0s

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