Remove v2 code from v1 #2658

Job	Run time
License Header and Formatting Checks	1m 58s
Integration Tests on swiftlang/swift:nightly-jammy	3m 37s
Performance Tests on swiftlang/swift:nightly-jammy	1m 3s
Integration Tests on swift:6.0-jammy	2m 46s
Build and Test on swiftlang/swift:nightly-jammy	4m 33s
Performance Tests on swift:6.0-jammy	57s
Integration Tests on swift:5.10.1-noble	5m 10s
Build and Test on swift:6.0-jammy	3m 35s
Performance Tests on swift:5.10.1-noble	28s
Integration Tests on swift:5.9-jammy	4m 21s
Build and Test on swift:5.10.1-noble	3m 57s
Performance Tests on swift:5.9-jammy	25s
Build and Test on swift:5.9-jammy	3m 22s
	36m 12s

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