NFC: BridgeJS: Remove dead cleanup infrastructure #13

Job	Run time
check-bridgejs-generated	3m 43s
build-examples	21m 19s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	16m 31s
Build for native target (macos-15, Xcode_16.4)	2m 30s
prettier	8s
format	31s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	14m 0s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	2m 55s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	13m 7s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	3m 6s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	14m 58s
deploy-examples	4s
	1h 32m 52s

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