hvf: arm: Remove PL1_WRITE_MASK

As it had never been used since the first commit a1477da3ddeb ("hvf: Add
Apple Silicon support").

Signed-off-by: Zenghui Yu <zenghui.yu@linux.dev>
Message-id: 20240422092715.71973-1-zenghui.yu@linux.dev
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
1 file changed