We should remove references to Subversion from the project ReadMe as we prepare to deprecate Subversion support.
<rdar://problem/93127701>
Pull request: https://github.com/WebKit/WebKit/pull/594
Committed r294074 (250471@main): <https://commits.webkit.org/250471@main> Reviewed commits have been landed. Closing PR #594 and removing active labels.