readline is also removed from sync target #240

Job	Run time
make (check, --enable-yjit, --yjit)	7m 29s
make (check, --enable-yjit=dev, --yjit-call-threshold=1 --yjit-verify-ctx --yjit-code-gc, -T --yj...	17m 50s
cargo test	41s
YJIT macOS Arm64 result	3s
	26m 3s

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