build-webkit: Remove AppleWin and FTW ports support
Pull request: https://github.com/WebKit/WebKit/pull/10634
Committed 260811@main (0302892f54aa): <https://commits.webkit.org/260811@main> Reviewed commits have been landed. Closing PR #10634 and removing active labels.
<rdar://problem/105898773>
bug#253001 – PROGRESSION (260811@main): Failed test 'prependToEnvironmentVariableList: Debug with FTW'