impl(v3): remove backward compatibility cmake proto libs (#15931) #1051

Job	Run time
debug_job	3s
Save PR ref	2s
Windows-Bazel / bazel + msvc-2022 + opt + Core	22s
Windows-CMake	0s
macOS-CMake	0s
macOS-Bazel	0s
Notify-Google-Chat	3s
	30s

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