chore: remove React Native 0.71 leftover in `build.gradle` #907

Job	Run time
build (macos, fabric-view, kotlin-objc)	2m 38s
build (macos, legacy-module, cpp)	1m 52s
build (macos, legacy-module, kotlin-swift)	1m 45s
build (macos, legacy-module, kotlin-objc)	1m 54s
build (macos, legacy-view, kotlin-swift)	2m 9s
build (macos, legacy-view, kotlin-objc)	2m 14s
build (macos, turbo-module, cpp)	2m 26s
build (macos, turbo-module, kotlin-objc)	2m 5s
build (ubuntu, fabric-view, kotlin-objc)	1m 39s
build (ubuntu, legacy-module, cpp)	1m 31s
build (ubuntu, legacy-module, kotlin-swift)	1m 22s
build (ubuntu, legacy-module, kotlin-objc)	1m 30s
build (ubuntu, legacy-view, kotlin-swift)	1m 25s
build (ubuntu, legacy-view, kotlin-objc)	1m 45s
build (ubuntu, library, js)	1m 32s
build (ubuntu, turbo-module, kotlin-objc)	1m 29s
build (ubuntu, turbo-module, cpp)	1m 26s
	30m 42s

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