Remove implementation bits for clusters that are being removed. #93249

Job	Run time
Build framework (macos-release, -sdk macosx -configuration Release)	12m 31s
Build framework (macos-release, -sdk macosx -configuration Release)	12m 31s
Build framework (ios-release, -sdk iphoneos -configuration Release)	8m 24s
Build framework (ios-release, -sdk iphoneos -configuration Release)	8m 24s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	9m 13s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	9m 13s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	10m 34s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	10m 34s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	27m 15s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	27m 15s
Run framework tests (tsan, -enableThreadSanitizer YES)	40m 23s
Run framework tests (tsan, -enableThreadSanitizer YES)	30m 5s
Run framework tests (leaks, ENABLE_LEAK_DETECTION=1)	26m 18s
Run framework tests (leaks, ENABLE_LEAK_DETECTION=1)	26m 18s
	4h 18m 58s

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