The code doesn't need to be conditional because for ARM64E, NUMBER_OF_ADDRESS_ENCODING_INSTRUCTIONS always equals 4.
<rdar://problem/108108389>
Pull request: https://github.com/WebKit/WebKit/pull/12779
Committed 263029@main (afe8886c54aa): <https://commits.webkit.org/263029@main> Reviewed commits have been landed. Closing PR #12779 and removing active labels.
Re-opened since this is blocked by bug 255549
Pull request: https://github.com/WebKit/WebKit/pull/12838
Committed 263050@main (c67536ceb173): <https://commits.webkit.org/263050@main> Reviewed commits have been landed. Closing PR #12838 and removing active labels.