fix: remove React-Codegen dependency from podspec #952

Job	Run time
build (macos, legacy-module, cpp)	2m 25s
build (macos, fabric-view, kotlin-objc)	1m 49s
build (macos, legacy-module, kotlin-swift)	1m 55s
build (macos, legacy-module, kotlin-objc)	1m 50s
build (macos, legacy-view, kotlin-swift)	1m 57s
build (macos, legacy-view, kotlin-objc)	2m 6s
build (macos, nitro-module, kotlin-swift)	1m 52s
build (macos, turbo-module, cpp)	1m 45s
build (macos, turbo-module, kotlin-objc)	12m 40s
build (ubuntu, fabric-view, kotlin-objc)	1m 34s
build (ubuntu, legacy-module, cpp)	1m 49s
build (ubuntu, legacy-module, kotlin-swift)	1m 34s
build (ubuntu, legacy-module, kotlin-objc)	1m 39s
build (ubuntu, legacy-view, kotlin-swift)	1m 28s
build (ubuntu, legacy-view, kotlin-objc)	1m 38s
build (ubuntu, library, js)	1m 32s
build (ubuntu, nitro-module, kotlin-swift)	1m 28s
build (ubuntu, turbo-module, kotlin-objc)	1m 39s
build (ubuntu, turbo-module, cpp)	1m 27s
	44m 7s

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