BridgeJS: Remove unnecessary helper enums for struct bridging (#532) #1988

Job	Run time
check-bridgejs-generated	2m 52s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	13m 17s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	13m 37s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	13m 44s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	17m 8s
format	33s
build-examples	44m 29s
Build for native target (macos-15, Xcode_16.4)	3m 20s
deploy-examples	17s
	1h 49m 17s

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