Avoid linking TestIPC to WebKit.framework after 254088@main
<rdar://problem/99561877>
Pull request: https://github.com/WebKit/WebKit/pull/4020
Committed 254179@main (b27e6c8f5f5f): <https://commits.webkit.org/254179@main> Reviewed commits have been landed. Closing PR #4020 and removing active labels.